41155019689 has 27 divisors (see below), whose sum is σ = 48661573797. Its totient is φ = 34704863424.

The previous prime is 41155019681. The next prime is 41155019753. The reversal of 41155019689 is 98691055114.

It is a happy number.

The square root of 41155019689 is 202867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2353899289 + 38801120400 = 48517^2 + 196980^2 .

It is not a de Polignac number, because 41155019689 - 2³ = 41155019681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41155019681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 103664839 + ... + 103665235.

It is an arithmetic number, because the mean of its divisors is an integer number (1802280511).

Almost surely, 2^41155019689 is an apocalyptic number.

41155019689 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

41155019689 is the 202867-th square number.

41155019689 is the 101434-th centered octagonal number.

It is an amenable number.

41155019689 is a deficient number, since it is larger than the sum of its proper divisors (7506554108).

41155019689 is an frugal number, since it uses more digits than its factorization.

41155019689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 49.

Multiplying 41155019689 by its sum of digits (49), we get a square (2016595964761 = 1420069²).

41155019689 divided by its sum of digits (49) gives a square (839898361 = 28981²).

The spelling of 41155019689 in words is "forty-one billion, one hundred fifty-five million, nineteen thousand, six hundred eighty-nine".