50042531979 has 48 divisors (see below), whose sum is σ = 81940884480. Its totient is φ = 29151299520.

The previous prime is 50042531977. The next prime is 50042531989. The reversal of 50042531979 is 97913524005.

It is a happy number.

50042531979 is a `hidden beast` number, since 5 + 0 + 0 + 42 + 531 + 9 + 79 = 666.

It is not a de Polignac number, because 50042531979 - 2¹ = 50042531977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50042531977) 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 47 ways as a sum of consecutive naturals, for example, 601152 + ... + 679314.

It is an arithmetic number, because the mean of its divisors is an integer number (1707101760).

Almost surely, 2^50042531979 is an apocalyptic number.

50042531979 is a deficient number, since it is larger than the sum of its proper divisors (31898352501).

50042531979 is a wasteful number, since it uses less digits than its factorization.

50042531979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78432 (or 78429 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 50042531979 in words is "fifty billion, forty-two million, five hundred thirty-one thousand, nine hundred seventy-nine".