139128688496 has 20 divisors (see below), whose sum is σ = 308070667632. Its totient is φ = 59626580736.

The previous prime is 139128688477. The next prime is 139128688549. The reversal of 139128688496 is 694886821931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621110105 + ... + 621110328.

Almost surely, 2^139128688496 is an apocalyptic number.

139128688496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139128688496 is an abundant number, since it is smaller than the sum of its proper divisors (168941979136).

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

139128688496 is a wasteful number, since it uses less digits than its factorization.

139128688496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242220448 (or 1242220442 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 65.

The spelling of 139128688496 in words is "one hundred thirty-nine billion, one hundred twenty-eight million, six hundred eighty-eight thousand, four hundred ninety-six".