387401831768 has 24 divisors (see below), whose sum is σ = 844970832900. Its totient is φ = 166029356304.

The previous prime is 387401831743. The next prime is 387401831771. The reversal of 387401831768 is 867138104783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 494134598 + ... + 494135381.

Almost surely, 2^387401831768 is an apocalyptic number.

It is an amenable number.

387401831768 is an abundant number, since it is smaller than the sum of its proper divisors (457569001132).

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

387401831768 is a wasteful number, since it uses less digits than its factorization.

387401831768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988269999 (or 988269988 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 387401831768 in words is "three hundred eighty-seven billion, four hundred one million, eight hundred thirty-one thousand, seven hundred sixty-eight".