157630402697 has 8 divisors (see below), whose sum is σ = 158961339432. Its totient is φ = 156302080000.

The previous prime is 157630402679. The next prime is 157630402703. The reversal of 157630402697 is 796204036751.

It can be written as a sum of positive squares in 4 ways, for example, as 14586842176 + 143043560521 = 120776^2 + 378211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157630402697 - 2³⁰ = 156556660873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157630402627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532304 + ... + 773697.

It is an arithmetic number, because the mean of its divisors is an integer number (19870167429).

Almost surely, 2^157630402697 is an apocalyptic number.

It is an amenable number.

157630402697 is a deficient number, since it is larger than the sum of its proper divisors (1330936735).

157630402697 is a wasteful number, since it uses less digits than its factorization.

157630402697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307019.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 157630402697 in words is "one hundred fifty-seven billion, six hundred thirty million, four hundred two thousand, six hundred ninety-seven".