50079927921 has 16 divisors (see below), whose sum is σ = 70705799424. Its totient is φ = 31420600064.

The previous prime is 50079927899. The next prime is 50079927959. The reversal of 50079927921 is 12972997005.

It is not a de Polignac number, because 50079927921 - 2²⁶ = 50012819057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (50079997921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156171 + ... + 1198703.

It is an arithmetic number, because the mean of its divisors is an integer number (4419112464).

Almost surely, 2^50079927921 is an apocalyptic number.

50079927921 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50079927921 is a deficient number, since it is larger than the sum of its proper divisors (20625871503).

50079927921 is a wasteful number, since it uses less digits than its factorization.

50079927921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65640.

The product of its (nonzero) digits is 714420, while the sum is 51.

The spelling of 50079927921 in words is "fifty billion, seventy-nine million, nine hundred twenty-seven thousand, nine hundred twenty-one".