40125297579 has 16 divisors (see below), whose sum is σ = 55364497920. Its totient is φ = 25818789920.

The previous prime is 40125297503. The next prime is 40125297601. The reversal of 40125297579 is 97579252104.

It is a cyclic number.

It is not a de Polignac number, because 40125297579 - 2³³ = 31535362987 is a prime.

It is a super-2 number, since 2×40125297579² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40125297679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175864 + ... + 333434.

It is an arithmetic number, because the mean of its divisors is an integer number (3460281120).

Almost surely, 2^40125297579 is an apocalyptic number.

40125297579 is a deficient number, since it is larger than the sum of its proper divisors (15239200341).

40125297579 is a wasteful number, since it uses less digits than its factorization.

40125297579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160530.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 40125297579 in words is "forty billion, one hundred twenty-five million, two hundred ninety-seven thousand, five hundred seventy-nine".