50887065891 has 16 divisors (see below), whose sum is σ = 69715437440. Its totient is φ = 32998250880.

The previous prime is 50887065877. The next prime is 50887065941. The reversal of 50887065891 is 19856078805.

It is a happy number.

It is not a de Polignac number, because 50887065891 - 2¹⁰ = 50887064867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50887065851) 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, 787321 + ... + 849498.

It is an arithmetic number, because the mean of its divisors is an integer number (4357214840).

Almost surely, 2^50887065891 is an apocalyptic number.

50887065891 is a deficient number, since it is larger than the sum of its proper divisors (18828371549).

50887065891 is a wasteful number, since it uses less digits than its factorization.

50887065891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637106.

The product of its (nonzero) digits is 4838400, while the sum is 57.

The spelling of 50887065891 in words is "fifty billion, eight hundred eighty-seven million, sixty-five thousand, eight hundred ninety-one".