40431251352157 has 2 divisors, whose sum is σ = 40431251352158. Its totient is φ = 40431251352156.

The previous prime is 40431251352127. The next prime is 40431251352169. The reversal of 40431251352157 is 75125315213404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27532960918596 + 12898290433561 = 5247186^2 + 3591419^2 .

It is a cyclic number.

It is not a de Polignac number, because 40431251352157 - 2²³ = 40431242963549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40431251352127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215625676078 + 20215625676079.

It is an arithmetic number, because the mean of its divisors is an integer number (20215625676079).

Almost surely, 2^{40431251352157} is an apocalyptic number.

It is an amenable number.

40431251352157 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431251352157 is an equidigital number, since it uses as much as digits as its factorization.

40431251352157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 40431251352157 in words is "forty trillion, four hundred thirty-one billion, two hundred fifty-one million, three hundred fifty-two thousand, one hundred fifty-seven".