40407672531 has 16 divisors (see below), whose sum is σ = 54145385888. Its totient is φ = 26804390400.

The previous prime is 40407672523. The next prime is 40407672541. The reversal of 40407672531 is 13527670404.

40407672531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40407672531 - 2³ = 40407672523 is a prime.

It is a super-2 number, since 2×40407672531² (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 40407672531.

It is not an unprimeable number, because it can be changed into a prime (40407672541) 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, 871761 + ... + 916941.

It is an arithmetic number, because the mean of its divisors is an integer number (3384086618).

Almost surely, 2^40407672531 is an apocalyptic number.

40407672531 is a deficient number, since it is larger than the sum of its proper divisors (13737713357).

40407672531 is a wasteful number, since it uses less digits than its factorization.

40407672531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46662.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 40407672531 in words is "forty billion, four hundred seven million, six hundred seventy-two thousand, five hundred thirty-one".