89197810679 has 4 divisors (see below), whose sum is σ = 89203880520. Its totient is φ = 89191740840.

The previous prime is 89197810633. The next prime is 89197810763. The reversal of 89197810679 is 97601879198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97601879198 = 2 ⋅48800939599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89197810679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89197810379) 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, 3012824 + ... + 3042285.

It is an arithmetic number, because the mean of its divisors is an integer number (22300970130).

Almost surely, 2^89197810679 is an apocalyptic number.

89197810679 is a deficient number, since it is larger than the sum of its proper divisors (6069841).

89197810679 is a wasteful number, since it uses less digits than its factorization.

89197810679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069840.

The product of its (nonzero) digits is 13716864, while the sum is 65.

The spelling of 89197810679 in words is "eighty-nine billion, one hundred ninety-seven million, eight hundred ten thousand, six hundred seventy-nine".