89154589877 has 4 divisors (see below), whose sum is σ = 89441260896. Its totient is φ = 88867918860.

The previous prime is 89154589873. The next prime is 89154589919. The reversal of 89154589877 is 77898545198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89154589877 - 2² = 89154589873 is a prime.

It is a super-2 number, since 2×89154589877² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89154589877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89154589873) 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, 143335043 + ... + 143335664.

It is an arithmetic number, because the mean of its divisors is an integer number (22360315224).

Almost surely, 2^89154589877 is an apocalyptic number.

It is an amenable number.

89154589877 is a deficient number, since it is larger than the sum of its proper divisors (286671019).

89154589877 is a wasteful number, since it uses less digits than its factorization.

89154589877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286671018.

The product of its digits is 203212800, while the sum is 71.

The spelling of 89154589877 in words is "eighty-nine billion, one hundred fifty-four million, five hundred eighty-nine thousand, eight hundred seventy-seven".