40657476931 has 2 divisors, whose sum is σ = 40657476932. Its totient is φ = 40657476930.

The previous prime is 40657476863. The next prime is 40657477019. The reversal of 40657476931 is 13967475604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40657476931 - 2⁷ = 40657476803 is a prime.

It is a super-2 number, since 2×40657476931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40657476731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20328738465 + 20328738466.

It is an arithmetic number, because the mean of its divisors is an integer number (20328738466).

Almost surely, 2^40657476931 is an apocalyptic number.

40657476931 is a deficient number, since it is larger than the sum of its proper divisors (1).

40657476931 is an equidigital number, since it uses as much as digits as its factorization.

40657476931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 40657476931 in words is "forty billion, six hundred fifty-seven million, four hundred seventy-six thousand, nine hundred thirty-one".