891806114885 has 16 divisors (see below), whose sum is σ = 1234922647296. Its totient is φ = 605587062528.

The previous prime is 891806114851. The next prime is 891806114891. The reversal of 891806114885 is 588411608198.

891806114885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 891806114885 - 2³⁸ = 616928207941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123686564 + ... + 123693773.

It is an arithmetic number, because the mean of its divisors is an integer number (77182665456).

Almost surely, 2^891806114885 is an apocalyptic number.

It is an amenable number.

891806114885 is a deficient number, since it is larger than the sum of its proper divisors (343116532411).

891806114885 is a wasteful number, since it uses less digits than its factorization.

891806114885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247380452.

The product of its (nonzero) digits is 4423680, while the sum is 59.

The spelling of 891806114885 in words is "eight hundred ninety-one billion, eight hundred six million, one hundred fourteen thousand, eight hundred eighty-five".