139993669632 has 56 divisors (see below), whose sum is σ = 373293732456. Its totient is φ = 46664548352.

The previous prime is 139993669619. The next prime is 139993669639. The reversal of 139993669632 is 236966399931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139993669639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2823603 + ... + 2872754.

Almost surely, 2^139993669632 is an apocalyptic number.

139993669632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139993669632 is an abundant number, since it is smaller than the sum of its proper divisors (233300062824).

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

139993669632 is an frugal number, since it uses more digits than its factorization.

139993669632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696386 (or 5696362 counting only the distinct ones).

The product of its digits is 76527504, while the sum is 66.

The spelling of 139993669632 in words is "one hundred thirty-nine billion, nine hundred ninety-three million, six hundred sixty-nine thousand, six hundred thirty-two".