50646888877 has 6 divisors (see below), whose sum is σ = 54842489322. Its totient is φ = 46750974192.

The previous prime is 50646888841. The next prime is 50646888883. The reversal of 50646888877 is 77888864605.

It can be written as a sum of positive squares in 3 ways, for example, as 1136633796 + 49510255081 = 33714^2 + 222509^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50646888877 is a prime.

It is a super-2 number, since 2×50646888877² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50646888577) 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 5 ways as a sum of consecutive naturals, for example, 149842698 + ... + 149843035.

It is an arithmetic number, because the mean of its divisors is an integer number (9140414887).

Almost surely, 2^50646888877 is an apocalyptic number.

It is an amenable number.

50646888877 is a deficient number, since it is larger than the sum of its proper divisors (4195600445).

50646888877 is a wasteful number, since it uses less digits than its factorization.

50646888877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299685759 (or 299685746 counting only the distinct ones).

The product of its (nonzero) digits is 144506880, while the sum is 67.

The spelling of 50646888877 in words is "fifty billion, six hundred forty-six million, eight hundred eighty-eight thousand, eight hundred seventy-seven".