139453840032 has 96 divisors (see below), whose sum is σ = 399778001280. Its totient is φ = 42304496640.

The previous prime is 139453839923. The next prime is 139453840063. The reversal of 139453840032 is 230048354931.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×139453840032² (a number of 23 digits) contains 22 as substring.

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, 698307 + ... + 875522.

It is an arithmetic number, because the mean of its divisors is an integer number (4164354180).

Almost surely, 2^139453840032 is an apocalyptic number.

139453840032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139453840032 is an abundant number, since it is smaller than the sum of its proper divisors (260324161248).

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

139453840032 is a wasteful number, since it uses less digits than its factorization.

139453840032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573926 (or 1573918 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 139453840032 in words is "one hundred thirty-nine billion, four hundred fifty-three million, eight hundred forty thousand, thirty-two".