138848696664 has 64 divisors (see below), whose sum is σ = 370793363040. Its totient is φ = 43174871040.

The previous prime is 138848696621. The next prime is 138848696687. The reversal of 138848696664 is 466696848831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459717 + ... + 1551924.

Almost surely, 2^138848696664 is an apocalyptic number.

It is an amenable number.

138848696664 is an abundant number, since it is smaller than the sum of its proper divisors (231944666376).

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

138848696664 is a wasteful number, since it uses less digits than its factorization.

138848696664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011780 (or 3011776 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 69.

The spelling of 138848696664 in words is "one hundred thirty-eight billion, eight hundred forty-eight million, six hundred ninety-six thousand, six hundred sixty-four".