538422642279 has 12 divisors (see below), whose sum is σ = 778768335696. Its totient is φ = 358465316832.

The previous prime is 538422642259. The next prime is 538422642281. The reversal of 538422642279 is 972246224835.

538422642279 is a `hidden beast` number, since 53 + 84 + 2 + 26 + 422 + 79 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-538422642279 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538422642259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40252222 + ... + 40265595.

It is an arithmetic number, because the mean of its divisors is an integer number (64897361308).

Almost surely, 2^538422642279 is an apocalyptic number.

538422642279 is a deficient number, since it is larger than the sum of its proper divisors (240345693417).

538422642279 is a wasteful number, since it uses less digits than its factorization.

538422642279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80518566 (or 80518563 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 538422642279 in words is "five hundred thirty-eight billion, four hundred twenty-two million, six hundred forty-two thousand, two hundred seventy-nine".