40792109557 has 4 divisors (see below), whose sum is σ = 40879459296. Its totient is φ = 40704759820.

The previous prime is 40792109549. The next prime is 40792109591. The reversal of 40792109557 is 75590129704.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 40792109557 - 2³ = 40792109549 is a prime.

It is a super-2 number, since 2×40792109557² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40792109557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40792109507) 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, 43674169 + ... + 43675102.

It is an arithmetic number, because the mean of its divisors is an integer number (10219864824).

Almost surely, 2^40792109557 is an apocalyptic number.

It is an amenable number.

40792109557 is a deficient number, since it is larger than the sum of its proper divisors (87349739).

40792109557 is an equidigital number, since it uses as much as digits as its factorization.

40792109557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87349738.

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 40792109557 in words is "forty billion, seven hundred ninety-two million, one hundred nine thousand, five hundred fifty-seven".