89936362891 has 4 divisors (see below), whose sum is σ = 90278326512. Its totient is φ = 89594399272.

The previous prime is 89936362843. The next prime is 89936362961. The reversal of 89936362891 is 19826363998.

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

It is a cyclic number.

It is not a de Polignac number, because 89936362891 - 2⁹ = 89936362379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89936362091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170981416 + ... + 170981941.

It is an arithmetic number, because the mean of its divisors is an integer number (22569581628).

Almost surely, 2^89936362891 is an apocalyptic number.

89936362891 is a deficient number, since it is larger than the sum of its proper divisors (341963621).

89936362891 is a wasteful number, since it uses less digits than its factorization.

89936362891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341963620.

The product of its digits is 30233088, while the sum is 64.

The spelling of 89936362891 in words is "eighty-nine billion, nine hundred thirty-six million, three hundred sixty-two thousand, eight hundred ninety-one".