139936479802 has 32 divisors (see below), whose sum is σ = 250381043712. Its totient is φ = 57351541104.

The previous prime is 139936479791. The next prime is 139936479811. The reversal of 139936479802 is 208974639931.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 1355083 + ... + 1454689.

It is an arithmetic number, because the mean of its divisors is an integer number (7824407616).

Almost surely, 2^139936479802 is an apocalyptic number.

139936479802 is a deficient number, since it is larger than the sum of its proper divisors (110444563910).

139936479802 is a wasteful number, since it uses less digits than its factorization.

139936479802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104002.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 139936479802 in words is "one hundred thirty-nine billion, nine hundred thirty-six million, four hundred seventy-nine thousand, eight hundred two".