187297056356 has 6 divisors (see below), whose sum is σ = 327769848630. Its totient is φ = 93648528176.

The previous prime is 187297056347. The next prime is 187297056379. The reversal of 187297056356 is 653650792781.

It is a happy number.

187297056356 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 186408062500 + 888993856 = 431750^2 + 29816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 187297056295 and 187297056304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23412132041 + ... + 23412132048.

It is an arithmetic number, because the mean of its divisors is an integer number (54628308105).

Almost surely, 2^187297056356 is an apocalyptic number.

It is an amenable number.

187297056356 is a deficient number, since it is larger than the sum of its proper divisors (140472792274).

187297056356 is a wasteful number, since it uses less digits than its factorization.

187297056356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46824264093 (or 46824264091 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 59.

The spelling of 187297056356 in words is "one hundred eighty-seven billion, two hundred ninety-seven million, fifty-six thousand, three hundred fifty-six".