139529169424 has 40 divisors (see below), whose sum is σ = 284967872000. Its totient is φ = 65999442816.

The previous prime is 139529169331. The next prime is 139529169427. The reversal of 139529169424 is 424961925931.

It is not an unprimeable number, because it can be changed into a prime (139529169427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108144 + ... + 539215.

It is an arithmetic number, because the mean of its divisors is an integer number (7124196800).

Almost surely, 2^139529169424 is an apocalyptic number.

It is an amenable number.

139529169424 is an abundant number, since it is smaller than the sum of its proper divisors (145438702576).

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

139529169424 is a wasteful number, since it uses less digits than its factorization.

139529169424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648095 (or 648089 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The spelling of 139529169424 in words is "one hundred thirty-nine billion, five hundred twenty-nine million, one hundred sixty-nine thousand, four hundred twenty-four".