139922235649 has 48 divisors (see below), whose sum is σ = 170037891072. Its totient is φ = 112765492224.

The previous prime is 139922235637. The next prime is 139922235653. The reversal of 139922235649 is 946532229931.

It is not a de Polignac number, because 139922235649 - 2⁵ = 139922235617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139922235649.

It is not an unprimeable number, because it can be changed into a prime (139922235679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53140437 + ... + 53143069.

It is an arithmetic number, because the mean of its divisors is an integer number (3542456064).

Almost surely, 2^139922235649 is an apocalyptic number.

It is an amenable number.

139922235649 is a deficient number, since it is larger than the sum of its proper divisors (30115655423).

139922235649 is a wasteful number, since it uses less digits than its factorization.

139922235649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2903 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 55.

The spelling of 139922235649 in words is "one hundred thirty-nine billion, nine hundred twenty-two million, two hundred thirty-five thousand, six hundred forty-nine".