102774357656 has 8 divisors (see below), whose sum is σ = 192701920620. Its totient is φ = 51387178824.

The previous prime is 102774357593. The next prime is 102774357689. The reversal of 102774357656 is 656753477201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 102774357598 and 102774357607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6423397346 + ... + 6423397361.

Almost surely, 2^102774357656 is an apocalyptic number.

It is an amenable number.

102774357656 is a deficient number, since it is larger than the sum of its proper divisors (89927562964).

102774357656 is a wasteful number, since it uses less digits than its factorization.

102774357656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12846794713 (or 12846794709 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 102774357656 in words is "one hundred two billion, seven hundred seventy-four million, three hundred fifty-seven thousand, six hundred fifty-six".