89617307557 has 4 divisors (see below), whose sum is σ = 90322955776. Its totient is φ = 88911659340.

The previous prime is 89617307539. The next prime is 89617307639. The reversal of 89617307557 is 75570371698.

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 a de Polignac number, because none of the positive numbers 2^k-89617307557 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 (89617307537) 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, 352823919 + ... + 352824172.

It is an arithmetic number, because the mean of its divisors is an integer number (22580738944).

Almost surely, 2^89617307557 is an apocalyptic number.

It is an amenable number.

89617307557 is a deficient number, since it is larger than the sum of its proper divisors (705648219).

89617307557 is a wasteful number, since it uses less digits than its factorization.

89617307557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705648218.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 89617307557 in words is "eighty-nine billion, six hundred seventeen million, three hundred seven thousand, five hundred fifty-seven".