139626426251 has 4 divisors (see below), whose sum is σ = 150366920592. Its totient is φ = 128885931912.

The previous prime is 139626426239. The next prime is 139626426253. The reversal of 139626426251 is 152624626931.

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

It is a cyclic number.

It is not a de Polignac number, because 139626426251 - 2³⁰ = 138552684427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139626426196 and 139626426205.

It is not an unprimeable number, because it can be changed into a prime (139626426253) 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, 5370247151 + ... + 5370247176.

It is an arithmetic number, because the mean of its divisors is an integer number (37591730148).

Almost surely, 2^139626426251 is an apocalyptic number.

139626426251 is a deficient number, since it is larger than the sum of its proper divisors (10740494341).

139626426251 is a wasteful number, since it uses less digits than its factorization.

139626426251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10740494340.

The product of its digits is 933120, while the sum is 47.

The spelling of 139626426251 in words is "one hundred thirty-nine billion, six hundred twenty-six million, four hundred twenty-six thousand, two hundred fifty-one".