97589715989 has 4 divisors (see below), whose sum is σ = 97903509600. Its totient is φ = 97275922380.

The previous prime is 97589715973. The next prime is 97589716031. The reversal of 97589715989 is 98951798579.

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 97589715989 - 2⁴ = 97589715973 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 (97589715929) 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, 156896339 + ... + 156896960.

It is an arithmetic number, because the mean of its divisors is an integer number (24475877400).

Almost surely, 2^97589715989 is an apocalyptic number.

It is an amenable number.

97589715989 is a deficient number, since it is larger than the sum of its proper divisors (313793611).

97589715989 is a wasteful number, since it uses less digits than its factorization.

97589715989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313793610.

The product of its digits is 514382400, while the sum is 77.

The spelling of 97589715989 in words is "ninety-seven billion, five hundred eighty-nine million, seven hundred fifteen thousand, nine hundred eighty-nine".