40157432671 has 2 divisors, whose sum is σ = 40157432672. Its totient is φ = 40157432670.

The previous prime is 40157432599. The next prime is 40157432681. The reversal of 40157432671 is 17623475104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40157432671 is a prime.

It is a super-2 number, since 2×40157432671² (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 (40157432681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078716335 + 20078716336.

It is an arithmetic number, because the mean of its divisors is an integer number (20078716336).

Almost surely, 2^40157432671 is an apocalyptic number.

40157432671 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157432671 is an equidigital number, since it uses as much as digits as its factorization.

40157432671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 40157432671 in words is "forty billion, one hundred fifty-seven million, four hundred thirty-two thousand, six hundred seventy-one".