40157463431 has 2 divisors, whose sum is σ = 40157463432. Its totient is φ = 40157463430.

The previous prime is 40157463421. The next prime is 40157463443. The reversal of 40157463431 is 13436475104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40157463431 is a prime.

It is a super-2 number, since 2×40157463431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40157463421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078731715 + 20078731716.

It is an arithmetic number, because the mean of its divisors is an integer number (20078731716).

Almost surely, 2^40157463431 is an apocalyptic number.

40157463431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157463431 is an equidigital number, since it uses as much as digits as its factorization.

40157463431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 40157463431 in words is "forty billion, one hundred fifty-seven million, four hundred sixty-three thousand, four hundred thirty-one".