89057645789 has 4 divisors (see below), whose sum is σ = 101780166624. Its totient is φ = 76335124956.

The previous prime is 89057645777. The next prime is 89057645791. The reversal of 89057645789 is 98754675098.

It is a happy number.

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 89057645789 - 2⁸ = 89057645533 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 (89057645759) 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, 6361260407 + ... + 6361260420.

It is an arithmetic number, because the mean of its divisors is an integer number (25445041656).

Almost surely, 2^89057645789 is an apocalyptic number.

It is an amenable number.

89057645789 is a deficient number, since it is larger than the sum of its proper divisors (12722520835).

89057645789 is a wasteful number, since it uses less digits than its factorization.

89057645789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722520834.

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 89057645789 in words is "eighty-nine billion, fifty-seven million, six hundred forty-five thousand, seven hundred eighty-nine".