422640251139 has 32 divisors (see below), whose sum is σ = 590357214720. Its totient is φ = 268441164288.

The previous prime is 422640251101. The next prime is 422640251141. The reversal of 422640251139 is 931152046224.

It is a de Polignac number, because none of the positive numbers 2^k-422640251139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422640251097 and 422640251106.

It is not an unprimeable number, because it can be changed into a prime (422640251179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18482437 + ... + 18505289.

It is an arithmetic number, because the mean of its divisors is an integer number (18448662960).

Almost surely, 2^422640251139 is an apocalyptic number.

422640251139 is a deficient number, since it is larger than the sum of its proper divisors (167716963581).

422640251139 is a wasteful number, since it uses less digits than its factorization.

422640251139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23931.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 422640251139 in words is "four hundred twenty-two billion, six hundred forty million, two hundred fifty-one thousand, one hundred thirty-nine".