40105531857613 has 8 divisors (see below), whose sum is σ = 41189777701632. Its totient is φ = 39021302463696.

The previous prime is 40105531857569. The next prime is 40105531857619. The reversal of 40105531857613 is 31675813550104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40105531857613 - 2²⁵ = 40105498303181 is a prime.

It is a super-2 number, since 2×40105531857613² (a number of 28 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 (40105531857619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911256 + ... + 9002302.

It is an arithmetic number, because the mean of its divisors is an integer number (5148722212704).

Almost surely, 2^{40105531857613} is an apocalyptic number.

It is an amenable number.

40105531857613 is a deficient number, since it is larger than the sum of its proper divisors (1084245844019).

40105531857613 is a wasteful number, since it uses less digits than its factorization.

40105531857613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225051.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 40105531857613 in words is "forty trillion, one hundred five billion, five hundred thirty-one million, eight hundred fifty-seven thousand, six hundred thirteen".