50139747196 has 72 divisors (see below), whose sum is σ = 111735044960. Its totient is φ = 19267269120.

The previous prime is 50139747191. The next prime is 50139747223. The reversal of 50139747196 is 69174793105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139747191) 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, 145960 + ... + 348688.

Almost surely, 2^50139747196 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 50139747196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55867522480).

50139747196 is an abundant number, since it is smaller than the sum of its proper divisors (61595297764).

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

50139747196 is a wasteful number, since it uses less digits than its factorization.

50139747196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202835 (or 202822 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 50139747196 in words is "fifty billion, one hundred thirty-nine million, seven hundred forty-seven thousand, one hundred ninety-six".