50617728388 has 24 divisors (see below), whose sum is σ = 91817944064. Its totient is φ = 24390806400.

The previous prime is 50617728353. The next prime is 50617728389. The reversal of 50617728388 is 88382771605.

It is a happy number.

It is a super-2 number, since 2×50617728388² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50617728389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 817020 + ... + 876787.

Almost surely, 2^50617728388 is an apocalyptic number.

It is an amenable number.

50617728388 is a deficient number, since it is larger than the sum of its proper divisors (41200215676).

50617728388 is a wasteful number, since it uses less digits than its factorization.

50617728388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694083 (or 1694081 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 50617728388 in words is "fifty billion, six hundred seventeen million, seven hundred twenty-eight thousand, three hundred eighty-eight".