50079778320 has 640 divisors, whose sum is σ = 190515806208. Its totient is φ = 10716364800.

The previous prime is 50079778313. The next prime is 50079778339. The reversal of 50079778320 is 2387797005.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 50079778320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109583532 + ... + 109583988.

Almost surely, 2^50079778320 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 50079778320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95257903104).

50079778320 is an abundant number, since it is smaller than the sum of its proper divisors (140436027888).

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

50079778320 is a wasteful number, since it uses less digits than its factorization.

50079778320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 50079778320 in words is "fifty billion, seventy-nine million, seven hundred seventy-eight thousand, three hundred twenty".