50867680865 has 4 divisors (see below), whose sum is σ = 61041217044. Its totient is φ = 40694144688.

The previous prime is 50867680769. The next prime is 50867680867. The reversal of 50867680865 is 56808676805.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40440003409 + 10427677456 = 201097^2 + 102116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50867680865 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50867680867) 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, 5086768082 + ... + 5086768091.

It is an arithmetic number, because the mean of its divisors is an integer number (15260304261).

Almost surely, 2^50867680865 is an apocalyptic number.

It is an amenable number.

50867680865 is a deficient number, since it is larger than the sum of its proper divisors (10173536179).

50867680865 is a wasteful number, since it uses less digits than its factorization.

50867680865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173536178.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 50867680865 in words is "fifty billion, eight hundred sixty-seven million, six hundred eighty thousand, eight hundred sixty-five".