50913843421 has 24 divisors (see below), whose sum is σ = 59664116160. Its totient is φ = 43318296000.

The previous prime is 50913843397. The next prime is 50913843427. The reversal of 50913843421 is 12434831905.

It is a happy number.

It is not a de Polignac number, because 50913843421 - 2⁵ = 50913843389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50913843427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18059550 + ... + 18062368.

It is an arithmetic number, because the mean of its divisors is an integer number (2486004840).

Almost surely, 2^50913843421 is an apocalyptic number.

It is an amenable number.

50913843421 is a deficient number, since it is larger than the sum of its proper divisors (8750272739).

50913843421 is a wasteful number, since it uses less digits than its factorization.

50913843421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425 (or 5418 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 50913843421 in words is "fifty billion, nine hundred thirteen million, eight hundred forty-three thousand, four hundred twenty-one".