38138989580 has 48 divisors (see below), whose sum is σ = 81689664000. Its totient is φ = 14954037696.

The previous prime is 38138989573. The next prime is 38138989601. The reversal of 38138989580 is 8598983183.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132791 + ... + 306449.

It is an arithmetic number, because the mean of its divisors is an integer number (1701868000).

Almost surely, 2^38138989580 is an apocalyptic number.

It is an amenable number.

38138989580 is an abundant number, since it is smaller than the sum of its proper divisors (43550674420).

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

38138989580 is a wasteful number, since it uses less digits than its factorization.

38138989580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173886 (or 173884 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 62.

The spelling of 38138989580 in words is "thirty-eight billion, one hundred thirty-eight million, nine hundred eighty-nine thousand, five hundred eighty".