5090918891 has 8 divisors (see below), whose sum is σ = 5149314144. Its totient is φ = 5032696320.

The previous prime is 5090918863. The next prime is 5090918897. The reversal of 5090918891 is 1988190905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5090918891 - 2²⁶ = 5023810027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5090918897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16601 + ... + 102261.

It is an arithmetic number, because the mean of its divisors is an integer number (643664268).

Almost surely, 2^5090918891 is an apocalyptic number.

5090918891 is a deficient number, since it is larger than the sum of its proper divisors (58395253).

5090918891 is a wasteful number, since it uses less digits than its factorization.

5090918891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86341.

The product of its (nonzero) digits is 233280, while the sum is 50.

The square root of 5090918891 is about 71350.6754768306. The cubic root of 5090918891 is about 1720.2783589285.

The spelling of 5090918891 in words is "five billion, ninety million, nine hundred eighteen thousand, eight hundred ninety-one".