157007489761 has 2 divisors, whose sum is σ = 157007489762. Its totient is φ = 157007489760.

The previous prime is 157007489711. The next prime is 157007489819. The reversal of 157007489761 is 167984700751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138253830625 + 18753659136 = 371825^2 + 136944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157007489761 is a prime.

It is not a weakly prime, because it can be changed into another prime (157007489711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78503744880 + 78503744881.

It is an arithmetic number, because the mean of its divisors is an integer number (78503744881).

Almost surely, 2^157007489761 is an apocalyptic number.

It is an amenable number.

157007489761 is a deficient number, since it is larger than the sum of its proper divisors (1).

157007489761 is an equidigital number, since it uses as much as digits as its factorization.

157007489761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 55.

The spelling of 157007489761 in words is "one hundred fifty-seven billion, seven million, four hundred eighty-nine thousand, seven hundred sixty-one".