89864294691 has 4 divisors (see below), whose sum is σ = 119819059592. Its totient is φ = 59909529792.

The previous prime is 89864294657. The next prime is 89864294833. The reversal of 89864294691 is 19649246898.

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

It is not a de Polignac number, because 89864294691 - 2⁷ = 89864294563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89864294491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14977382446 + ... + 14977382451.

It is an arithmetic number, because the mean of its divisors is an integer number (29954764898).

Almost surely, 2^89864294691 is an apocalyptic number.

89864294691 is a deficient number, since it is larger than the sum of its proper divisors (29954764901).

89864294691 is a wasteful number, since it uses less digits than its factorization.

89864294691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29954764900.

The product of its digits is 53747712, while the sum is 66.

The spelling of 89864294691 in words is "eighty-nine billion, eight hundred sixty-four million, two hundred ninety-four thousand, six hundred ninety-one".