50766553864 has 16 divisors (see below), whose sum is σ = 102509387820. Its totient is φ = 23430717120.

The previous prime is 50766553861. The next prime is 50766553897. The reversal of 50766553864 is 46835566705.

It can be written as a sum of positive squares in 2 ways, for example, as 50022900964 + 743652900 = 223658^2 + 27270^2 .

It is not an unprimeable number, because it can be changed into a prime (50766553861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244069867 + ... + 244070074.

Almost surely, 2^50766553864 is an apocalyptic number.

It is an amenable number.

50766553864 is an abundant number, since it is smaller than the sum of its proper divisors (51742833956).

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

50766553864 is a wasteful number, since it uses less digits than its factorization.

50766553864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488139960 (or 488139956 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 50766553864 in words is "fifty billion, seven hundred sixty-six million, five hundred fifty-three thousand, eight hundred sixty-four".