38637063990 has 480 divisors, whose sum is σ = 129089990304. Its totient is φ = 8238827520.

The previous prime is 38637063923. The next prime is 38637064003. The reversal of 38637063990 is 9936073683.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 116728125 + ... + 116728455.

Almost surely, 2^38637063990 is an apocalyptic number.

38637063990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38637063990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64544995152).

38637063990 is an abundant number, since it is smaller than the sum of its proper divisors (90452926314).

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

38637063990 is a wasteful number, since it uses less digits than its factorization.

38637063990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 38637063990 in words is "thirty-eight billion, six hundred thirty-seven million, sixty-three thousand, nine hundred ninety".