138190442484 has 48 divisors (see below), whose sum is σ = 336579610752. Its totient is φ = 44045540352.

The previous prime is 138190442471. The next prime is 138190442497. The reversal of 138190442484 is 484244091831.

138190442484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138190442471) and next prime (138190442497).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730252 + ... + 899804.

It is an arithmetic number, because the mean of its divisors is an integer number (7012075224).

Almost surely, 2^138190442484 is an apocalyptic number.

It is an amenable number.

138190442484 is an abundant number, since it is smaller than the sum of its proper divisors (198389168268).

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

138190442484 is a wasteful number, since it uses less digits than its factorization.

138190442484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172536 (or 172534 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 138190442484 in words is "one hundred thirty-eight billion, one hundred ninety million, four hundred forty-two thousand, four hundred eighty-four".