89945359679999 has 4 divisors (see below), whose sum is σ = 92376315347064. Its totient is φ = 87514404012936.

The previous prime is 89945359679957. The next prime is 89945359680023. The reversal of 89945359679999 is 99997695354998.

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 89945359679999 - 2²⁸ = 89945091244543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89945359679899 and 89945359679908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89945359679099) 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, 1215477833477 + ... + 1215477833550.

It is an arithmetic number, because the mean of its divisors is an integer number (23094078836766).

Almost surely, 2^{89945359679999} is an apocalyptic number.

89945359679999 is a deficient number, since it is larger than the sum of its proper divisors (2430955667065).

89945359679999 is a wasteful number, since it uses less digits than its factorization.

89945359679999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430955667064.

The product of its digits is 482123275200, while the sum is 101.

The spelling of 89945359679999 in words is "eighty-nine trillion, nine hundred forty-five billion, three hundred fifty-nine million, six hundred seventy-nine thousand, nine hundred ninety-nine".