38889666004 has 48 divisors (see below), whose sum is σ = 82859995008. Its totient is φ = 15590320128.

The previous prime is 38889665977. The next prime is 38889666091. The reversal of 38889666004 is 40066698883.

It is a super-2 number, since 2×38889666004² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38889666004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173029 + ... + 328204.

It is an arithmetic number, because the mean of its divisors is an integer number (1726249896).

Almost surely, 2^38889666004 is an apocalyptic number.

38889666004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

38889666004 is an abundant number, since it is smaller than the sum of its proper divisors (43970329004).

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

38889666004 is a wasteful number, since it uses less digits than its factorization.

38889666004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501424 (or 501422 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 38889666004 in words is "thirty-eight billion, eight hundred eighty-nine million, six hundred sixty-six thousand, four".