41145849921 has 32 divisors (see below), whose sum is σ = 64314874368. Its totient is φ = 23119683840.

The previous prime is 41145849881. The next prime is 41145849929. The reversal of 41145849921 is 12994854114.

It is not a de Polignac number, because 41145849921 - 2¹³ = 41145841729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41145849929) 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 31 ways as a sum of consecutive naturals, for example, 509755 + ... + 584928.

It is an arithmetic number, because the mean of its divisors is an integer number (2009839824).

Almost surely, 2^41145849921 is an apocalyptic number.

It is an amenable number.

41145849921 is a deficient number, since it is larger than the sum of its proper divisors (23169024447).

41145849921 is a wasteful number, since it uses less digits than its factorization.

41145849921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094781.

The product of its digits is 414720, while the sum is 48.

The spelling of 41145849921 in words is "forty-one billion, one hundred forty-five million, eight hundred forty-nine thousand, nine hundred twenty-one".