38388664290 has 16 divisors (see below), whose sum is σ = 92132794368. Its totient is φ = 10236977136.

The previous prime is 38388664267. The next prime is 38388664331. The reversal of 38388664290 is 9246688383.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38388664290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639811042 + ... + 639811101.

It is an arithmetic number, because the mean of its divisors is an integer number (5758299648).

Almost surely, 2^38388664290 is an apocalyptic number.

38388664290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38388664290 is an abundant number, since it is smaller than the sum of its proper divisors (53744130078).

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

38388664290 is a wasteful number, since it uses less digits than its factorization.

38388664290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279622153.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 38388664290 in words is "thirty-eight billion, three hundred eighty-eight million, six hundred sixty-four thousand, two hundred ninety".