38919347404 has 72 divisors (see below), whose sum is σ = 80733436560. Its totient is φ = 16364073600.

The previous prime is 38919347399. The next prime is 38919347437. The reversal of 38919347404 is 40474391983.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6253014 + ... + 6259234.

It is an arithmetic number, because the mean of its divisors is an integer number (1121297730).

Almost surely, 2^38919347404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38919347404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40366718280).

38919347404 is an abundant number, since it is smaller than the sum of its proper divisors (41814089156).

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

38919347404 is a wasteful number, since it uses less digits than its factorization.

38919347404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839 (or 6830 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 38919347404 in words is "thirty-eight billion, nine hundred nineteen million, three hundred forty-seven thousand, four hundred four".