139393272671 has 4 divisors (see below), whose sum is σ = 139395942144. Its totient is φ = 139390603200.

The previous prime is 139393272661. The next prime is 139393272757. The reversal of 139393272671 is 176272393931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139393272671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139393272631) 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, 1254815 + ... + 1361376.

It is an arithmetic number, because the mean of its divisors is an integer number (34848985536).

Almost surely, 2^139393272671 is an apocalyptic number.

139393272671 is a deficient number, since it is larger than the sum of its proper divisors (2669473).

139393272671 is an equidigital number, since it uses as much as digits as its factorization.

139393272671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669472.

The product of its digits is 2571912, while the sum is 53.

The spelling of 139393272671 in words is "one hundred thirty-nine billion, three hundred ninety-three million, two hundred seventy-two thousand, six hundred seventy-one".