40157433431 has 2 divisors, whose sum is σ = 40157433432. Its totient is φ = 40157433430.

The previous prime is 40157433409. The next prime is 40157433457. The reversal of 40157433431 is 13433475104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40157433431 - 2⁶ = 40157433367 is a prime.

It is a super-2 number, since 2×40157433431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40157433391 and 40157433400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40157463431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078716715 + 20078716716.

It is an arithmetic number, because the mean of its divisors is an integer number (20078716716).

Almost surely, 2^40157433431 is an apocalyptic number.

40157433431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157433431 is an equidigital number, since it uses as much as digits as its factorization.

40157433431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 40157433431 in words is "forty billion, one hundred fifty-seven million, four hundred thirty-three thousand, four hundred thirty-one".