387890289164 has 12 divisors (see below), whose sum is σ = 775780578384. Its totient is φ = 166238695344.

The previous prime is 387890289131. The next prime is 387890289191. The reversal of 387890289164 is 461982098783.

It is a happy number.

387890289164 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 387890289164.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6926612279 + ... + 6926612334.

It is an arithmetic number, because the mean of its divisors is an integer number (64648381532).

Almost surely, 2^387890289164 is an apocalyptic number.

It is an amenable number.

387890289164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

387890289164 is a wasteful number, since it uses less digits than its factorization.

387890289164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853224624 (or 13853224622 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 387890289164 in words is "three hundred eighty-seven billion, eight hundred ninety million, two hundred eighty-nine thousand, one hundred sixty-four".