38889593490 has 64 divisors (see below), whose sum is σ = 107178992640. Its totient is φ = 8931579840.

The previous prime is 38889593383. The next prime is 38889593513. The reversal of 38889593490 is 9439598883.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3094974 + ... + 3107513.

It is an arithmetic number, because the mean of its divisors is an integer number (1674671760).

Almost surely, 2^38889593490 is an apocalyptic number.

38889593490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38889593490 is an abundant number, since it is smaller than the sum of its proper divisors (68289399150).

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

38889593490 is a wasteful number, since it uses less digits than its factorization.

38889593490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202527.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 38889593490 in words is "thirty-eight billion, eight hundred eighty-nine million, five hundred ninety-three thousand, four hundred ninety".