50767775681 has 8 divisors (see below), whose sum is σ = 58109996160. Its totient is φ = 43447975488.

The previous prime is 50767775623. The next prime is 50767775683. The reversal of 50767775681 is 18657776705.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50767775681 - 2²⁶ = 50700666817 is a prime.

It is a super-2 number, since 2×50767775681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50767775681.

It is not an unprimeable number, because it can be changed into a prime (50767775683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5600216 + ... + 5609273.

It is an arithmetic number, because the mean of its divisors is an integer number (7263749520).

Almost surely, 2^50767775681 is an apocalyptic number.

It is an amenable number.

50767775681 is a deficient number, since it is larger than the sum of its proper divisors (7342220479).

50767775681 is a wasteful number, since it uses less digits than its factorization.

50767775681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210143.

The product of its (nonzero) digits is 17287200, while the sum is 59.

The spelling of 50767775681 in words is "fifty billion, seven hundred sixty-seven million, seven hundred seventy-five thousand, six hundred eighty-one".