139502947696 has 80 divisors (see below), whose sum is σ = 322631207424. Its totient is φ = 57134068992.

The previous prime is 139502947643. The next prime is 139502947711. The reversal of 139502947696 is 696749205931.

It is a super-2 number, since 2×139502947696² (a number of 23 digits) contains 22 as substring.

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, 2790795 + ... + 2840341.

Almost surely, 2^139502947696 is an apocalyptic number.

139502947696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139502947696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161315603712).

139502947696 is an abundant number, since it is smaller than the sum of its proper divisors (183128259728).

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

139502947696 is a wasteful number, since it uses less digits than its factorization.

139502947696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50678 (or 50672 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 139502947696 in words is "one hundred thirty-nine billion, five hundred two million, nine hundred forty-seven thousand, six hundred ninety-six".