89659144971 has 32 divisors (see below), whose sum is σ = 144924272640. Its totient is φ = 54331149600.

The previous prime is 89659144961. The next prime is 89659144979. The reversal of 89659144971 is 17944195698.

89659144971 is a `hidden beast` number, since 8 + 96 + 59 + 1 + 4 + 497 + 1 = 666.

It is not a de Polignac number, because 89659144971 - 2³⁰ = 88585403147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89659144899 and 89659144908.

It is not an unprimeable number, because it can be changed into a prime (89659144979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2615281 + ... + 2649341.

It is an arithmetic number, because the mean of its divisors is an integer number (4528883520).

Almost surely, 2^89659144971 is an apocalyptic number.

89659144971 is a deficient number, since it is larger than the sum of its proper divisors (55265127669).

89659144971 is a wasteful number, since it uses less digits than its factorization.

89659144971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42944 (or 42938 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 89659144971 in words is "eighty-nine billion, six hundred fifty-nine million, one hundred forty-four thousand, nine hundred seventy-one".