89698135977 has 6 divisors (see below), whose sum is σ = 129563974202. Its totient is φ = 59798757312.

The previous prime is 89698135957. The next prime is 89698135979. The reversal of 89698135977 is 77953189698.

It can be written as a sum of positive squares in only one way, i.e., 89697854016 + 281961 = 299496^2 + 531^2 .

It is not a de Polignac number, because 89698135977 - 2²⁰ = 89697087401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89698135979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4983229768 + ... + 4983229785.

Almost surely, 2^89698135977 is an apocalyptic number.

It is an amenable number.

89698135977 is a deficient number, since it is larger than the sum of its proper divisors (39865838225).

89698135977 is a wasteful number, since it uses less digits than its factorization.

89698135977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966459559 (or 9966459556 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 72.

The spelling of 89698135977 in words is "eighty-nine billion, six hundred ninety-eight million, one hundred thirty-five thousand, nine hundred seventy-seven".