387612867664 has 40 divisors (see below), whose sum is σ = 822230418528. Its totient is φ = 175551588480.

The previous prime is 387612867661. The next prime is 387612867673. The reversal of 387612867664 is 466768216783.

It is a junction number, because it is equal to n+sod(n) for n = 387612867596 and 387612867605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387612867661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3926602 + ... + 4024105.

Almost surely, 2^387612867664 is an apocalyptic number.

It is an amenable number.

387612867664 is an abundant number, since it is smaller than the sum of its proper divisors (434617550864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387612867664 is a wasteful number, since it uses less digits than its factorization.

387612867664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951003 (or 7950997 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 64.

The spelling of 387612867664 in words is "three hundred eighty-seven billion, six hundred twelve million, eight hundred sixty-seven thousand, six hundred sixty-four".