50705388690 has 64 divisors (see below), whose sum is σ = 133010214912. Its totient is φ = 12268670400.

The previous prime is 50705388667. The next prime is 50705388703. The reversal of 50705388690 is 9688350705.

50705388690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×50705388690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25695 + ... + 319485.

It is an arithmetic number, because the mean of its divisors is an integer number (2078284608).

Almost surely, 2^50705388690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50705388690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66505107456).

50705388690 is an abundant number, since it is smaller than the sum of its proper divisors (82304826222).

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

50705388690 is a wasteful number, since it uses less digits than its factorization.

50705388690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294335.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 50705388690 in words is "fifty billion, seven hundred five million, three hundred eighty-eight thousand, six hundred ninety".