50131397280 has 48 divisors (see below), whose sum is σ = 157913902944. Its totient is φ = 13368372480.

The previous prime is 50131397279. The next prime is 50131397293. The reversal of 50131397280 is 8279313105.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52219726 + ... + 52220685.

It is an arithmetic number, because the mean of its divisors is an integer number (3289872978).

Almost surely, 2^50131397280 is an apocalyptic number.

It is an amenable number.

50131397280 is an abundant number, since it is smaller than the sum of its proper divisors (107782505664).

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

50131397280 is a wasteful number, since it uses less digits than its factorization.

50131397280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104440429 (or 104440421 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 50131397280 in words is "fifty billion, one hundred thirty-one million, three hundred ninety-seven thousand, two hundred eighty".