50135746778 has 16 divisors (see below), whose sum is σ = 81532067400. Its totient is φ = 22984274496.

The previous prime is 50135746751. The next prime is 50135746781. The reversal of 50135746778 is 87764753105.

50135746778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7134674089 + 43001072689 = 84467^2 + 207367^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6466925 + ... + 6474672.

Almost surely, 2^50135746778 is an apocalyptic number.

50135746778 is a deficient number, since it is larger than the sum of its proper divisors (31396320622).

50135746778 is a wasteful number, since it uses less digits than its factorization.

50135746778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941761.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 50135746778 in words is "fifty billion, one hundred thirty-five million, seven hundred forty-six thousand, seven hundred seventy-eight".