387663878788 has 24 divisors (see below), whose sum is σ = 680915499264. Its totient is φ = 193117898400.

The previous prime is 387663878729. The next prime is 387663878827. The reversal of 387663878788 is 887878366783.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029558 + ... + 1354738.

It is an arithmetic number, because the mean of its divisors is an integer number (28371479136).

Almost surely, 2^387663878788 is an apocalyptic number.

It is an amenable number.

387663878788 is a deficient number, since it is larger than the sum of its proper divisors (293251620476).

387663878788 is a wasteful number, since it uses less digits than its factorization.

387663878788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326283 (or 326281 counting only the distinct ones).

The product of its digits is 3641573376, while the sum is 79.

The spelling of 387663878788 in words is "three hundred eighty-seven billion, six hundred sixty-three million, eight hundred seventy-eight thousand, seven hundred eighty-eight".