157087641637 has 2 divisors, whose sum is σ = 157087641638. Its totient is φ = 157087641636.

The previous prime is 157087641629. The next prime is 157087641677. The reversal of 157087641637 is 736146780751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156694055716 + 393585921 = 395846^2 + 19839^2 .

It is a cyclic number.

It is not a de Polignac number, because 157087641637 - 2³ = 157087641629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157087641677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78543820818 + 78543820819.

It is an arithmetic number, because the mean of its divisors is an integer number (78543820819).

Almost surely, 2^157087641637 is an apocalyptic number.

It is an amenable number.

157087641637 is a deficient number, since it is larger than the sum of its proper divisors (1).

157087641637 is an equidigital number, since it uses as much as digits as its factorization.

157087641637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 157087641637 in words is "one hundred fifty-seven billion, eighty-seven million, six hundred forty-one thousand, six hundred thirty-seven".