50847540821 has 64 divisors (see below), whose sum is σ = 71176734720. Its totient is φ = 35067893760.

The previous prime is 50847540817. The next prime is 50847540847. The reversal of 50847540821 is 12804574805.

It is not a de Polignac number, because 50847540821 - 2² = 50847540817 is a prime.

It is a super-2 number, since 2×50847540821² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50847548821) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3399866 + ... + 3414788.

It is an arithmetic number, because the mean of its divisors is an integer number (1112136480).

Almost surely, 2^50847540821 is an apocalyptic number.

It is an amenable number.

50847540821 is a deficient number, since it is larger than the sum of its proper divisors (20329193899).

50847540821 is a wasteful number, since it uses less digits than its factorization.

50847540821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15114.

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 50847540821 in words is "fifty billion, eight hundred forty-seven million, five hundred forty thousand, eight hundred twenty-one".