50911661854 has 4 divisors (see below), whose sum is σ = 76367492784. Its totient is φ = 25455830926.

The previous prime is 50911661819. The next prime is 50911661873. The reversal of 50911661854 is 45816611905.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727915462 + ... + 12727915465.

It is an arithmetic number, because the mean of its divisors is an integer number (19091873196).

Almost surely, 2^50911661854 is an apocalyptic number.

50911661854 is a deficient number, since it is larger than the sum of its proper divisors (25455830930).

50911661854 is a wasteful number, since it uses less digits than its factorization.

50911661854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25455830929.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 50911661854 in words is "fifty billion, nine hundred eleven million, six hundred sixty-one thousand, eight hundred fifty-four".