139522438904 has 8 divisors (see below), whose sum is σ = 261604572960. Its totient is φ = 69761219448.

The previous prime is 139522438871. The next prime is 139522438919. The reversal of 139522438904 is 409834225931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8720152424 + ... + 8720152439.

It is an arithmetic number, because the mean of its divisors is an integer number (32700571620).

Almost surely, 2^139522438904 is an apocalyptic number.

It is an amenable number.

139522438904 is a deficient number, since it is larger than the sum of its proper divisors (122082134056).

139522438904 is a wasteful number, since it uses less digits than its factorization.

139522438904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17440304869 (or 17440304865 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 139522438904 in words is "one hundred thirty-nine billion, five hundred twenty-two million, four hundred thirty-eight thousand, nine hundred four".