41013486781 has 4 divisors (see below), whose sum is σ = 41041069632. Its totient is φ = 40985903932.

The previous prime is 41013486757. The next prime is 41013486791. The reversal of 41013486781 is 18768431014.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18768431014 = 2 ⋅9384215507.

It is a cyclic number.

It is not a de Polignac number, because 41013486781 - 2²⁵ = 40979932349 is a prime.

It is a super-2 number, since 2×41013486781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41013486751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13789195 + ... + 13792168.

It is an arithmetic number, because the mean of its divisors is an integer number (10260267408).

Almost surely, 2^41013486781 is an apocalyptic number.

It is an amenable number.

41013486781 is a deficient number, since it is larger than the sum of its proper divisors (27582851).

41013486781 is a wasteful number, since it uses less digits than its factorization.

41013486781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27582850.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 41013486781 in words is "forty-one billion, thirteen million, four hundred eighty-six thousand, seven hundred eighty-one".