50164651788 has 12 divisors (see below), whose sum is σ = 117050854200. Its totient is φ = 16721550592.

The previous prime is 50164651781. The next prime is 50164651793. The reversal of 50164651788 is 88715646105.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×50164651788² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50164651788.

It is not an unprimeable number, because it can be changed into a prime (50164651781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090193813 + ... + 2090193836.

It is an arithmetic number, because the mean of its divisors is an integer number (9754237850).

Almost surely, 2^50164651788 is an apocalyptic number.

It is an amenable number.

50164651788 is an abundant number, since it is smaller than the sum of its proper divisors (66886202412).

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

50164651788 is a wasteful number, since it uses less digits than its factorization.

50164651788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180387656 (or 4180387654 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 50164651788 in words is "fifty billion, one hundred sixty-four million, six hundred fifty-one thousand, seven hundred eighty-eight".