50278957722 has 144 divisors (see below), whose sum is σ = 134004858624. Its totient is φ = 13562640000.

The previous prime is 50278957717. The next prime is 50278957739. The reversal of 50278957722 is 22775987205.

50278957722 is a `hidden beast` number, since 502 + 7 + 89 + 57 + 7 + 2 + 2 = 666.

It is a super-2 number, since 2×50278957722² (a number of 22 digits) contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 1098597 + ... + 1143447.

It is an arithmetic number, because the mean of its divisors is an integer number (930589296).

Almost surely, 2^50278957722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50278957722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67002429312).

50278957722 is an abundant number, since it is smaller than the sum of its proper divisors (83725900902).

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

50278957722 is a wasteful number, since it uses less digits than its factorization.

50278957722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44945 (or 44935 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 50278957722 in words is "fifty billion, two hundred seventy-eight million, nine hundred fifty-seven thousand, seven hundred twenty-two".