6442972239105 has 24 divisors (see below), whose sum is σ = 11276243978688. Its totient is φ = 3402890189856.

The previous prime is 6442972239097. The next prime is 6442972239139. The reversal of 6442972239105 is 5019322792446.

It is a happy number.

6442972239105 is a `hidden beast` number, since 6 + 44 + 297 + 223 + 91 + 0 + 5 = 666.

It is not a de Polignac number, because 6442972239105 - 2³ = 6442972239097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 695030127 + ... + 695039396.

It is an arithmetic number, because the mean of its divisors is an integer number (469843499112).

Almost surely, 2^{6442972239105} is an apocalyptic number.

It is an amenable number.

6442972239105 is a deficient number, since it is larger than the sum of its proper divisors (4833271739583).

6442972239105 is a wasteful number, since it uses less digits than its factorization.

6442972239105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390069637 (or 1390069634 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 6442972239105 in words is "six trillion, four hundred forty-two billion, nine hundred seventy-two million, two hundred thirty-nine thousand, one hundred five".