50816039136 has 96 divisors (see below), whose sum is σ = 136731006720. Its totient is φ = 16516061184.

The previous prime is 50816039117. The next prime is 50816039137. The reversal of 50816039136 is 63193061805.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50816039137) 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, 2437525 + ... + 2458283.

It is an arithmetic number, because the mean of its divisors is an integer number (1424281320).

Almost surely, 2^50816039136 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 50816039136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68365503360).

50816039136 is an abundant number, since it is smaller than the sum of its proper divisors (85914967584).

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

50816039136 is a wasteful number, since it uses less digits than its factorization.

50816039136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21408 (or 21400 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 50816039136 in words is "fifty billion, eight hundred sixteen million, thirty-nine thousand, one hundred thirty-six".