387786666204 has 108 divisors (see below), whose sum is σ = 1164538930464. Its totient is φ = 108438801408.

The previous prime is 387786666191. The next prime is 387786666221. The reversal of 387786666204 is 402666687783.

387786666204 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×387786666204² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2255749 + ... + 2421564.

Almost surely, 2^387786666204 is an apocalyptic number.

It is an amenable number.

387786666204 is an abundant number, since it is smaller than the sum of its proper divisors (776752264260).

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

387786666204 is a wasteful number, since it uses less digits than its factorization.

387786666204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677384 (or 4677372 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 63.

The spelling of 387786666204 in words is "three hundred eighty-seven billion, seven hundred eighty-six million, six hundred sixty-six thousand, two hundred four".