187697363157 has 10 divisors (see below), whose sum is σ = 280387419158. Its totient is φ = 125131575384.

The previous prime is 187697363149. The next prime is 187697363173. The reversal of 187697363157 is 751363796781.

It is a happy number.

187697363157 is a `hidden beast` number, since 187 + 6 + 97 + 363 + 1 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 174397276881 + 13300086276 = 417609^2 + 115326^2 .

It is not a de Polignac number, because 187697363157 - 2³ = 187697363149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 187697363094 and 187697363103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187697363957) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1158625618 + ... + 1158625779.

Almost surely, 2^187697363157 is an apocalyptic number.

It is an amenable number.

187697363157 is a deficient number, since it is larger than the sum of its proper divisors (92690056001).

187697363157 is an equidigital number, since it uses as much as digits as its factorization.

187697363157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317251409 (or 2317251400 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The spelling of 187697363157 in words is "one hundred eighty-seven billion, six hundred ninety-seven million, three hundred sixty-three thousand, one hundred fifty-seven".