50161776565989 has 12 divisors (see below), whose sum is σ = 73515330945728. Its totient is φ = 30401076706440.

The previous prime is 50161776565933. The next prime is 50161776565993. The reversal of 50161776565989 is 98956567716105.

It is not a de Polignac number, because 50161776565989 - 2³⁶ = 50093057089253 is a prime.

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 50161776565989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50161776565289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69093355789 + ... + 69093356514.

Almost surely, 2^{50161776565989} is an apocalyptic number.

It is an amenable number.

50161776565989 is a deficient number, since it is larger than the sum of its proper divisors (23353554379739).

50161776565989 is a wasteful number, since it uses less digits than its factorization.

50161776565989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138186712328 (or 138186712317 counting only the distinct ones).

The product of its (nonzero) digits is 857304000, while the sum is 75.

The spelling of 50161776565989 in words is "fifty trillion, one hundred sixty-one billion, seven hundred seventy-six million, five hundred sixty-five thousand, nine hundred eighty-nine".