50277777778 has 32 divisors (see below), whose sum is σ = 77853726720. Its totient is φ = 24337272960.

The previous prime is 50277777761. The next prime is 50277777779. The reversal of 50277777778 is 87777777205.

It is not an unprimeable number, because it can be changed into a prime (50277777779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17572068 + ... + 17574928.

It is an arithmetic number, because the mean of its divisors is an integer number (2432928960).

Almost surely, 2^50277777778 is an apocalyptic number.

50277777778 is a deficient number, since it is larger than the sum of its proper divisors (27575948942).

50277777778 is a wasteful number, since it uses less digits than its factorization.

50277777778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642.

The product of its (nonzero) digits is 65883440, while the sum is 64.

The spelling of 50277777778 in words is "fifty billion, two hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred seventy-eight".