50123641664 has 112 divisors (see below), whose sum is σ = 107248147200. Its totient is φ = 23186042880.

The previous prime is 50123641597. The next prime is 50123641679. The reversal of 50123641664 is 46614632105.

It is a super-2 number, since 2×50123641664² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5534612 + ... + 5543660.

Almost surely, 2^50123641664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50123641664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53624073600).

50123641664 is an abundant number, since it is smaller than the sum of its proper divisors (57124505536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50123641664 is a wasteful number, since it uses less digits than its factorization.

50123641664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208 (or 9198 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 50123641664 in words is "fifty billion, one hundred twenty-three million, six hundred forty-one thousand, six hundred sixty-four".