97090810189 has 4 divisors (see below), whose sum is σ = 100222771840. Its totient is φ = 93958848540.

The previous prime is 97090810111. The next prime is 97090810207. The reversal of 97090810189 is 98101809079.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98101809079 = 9743 ⋅10068953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97090810189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97090810889) 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, 1565980779 + ... + 1565980840.

It is an arithmetic number, because the mean of its divisors is an integer number (25055692960).

Almost surely, 2^97090810189 is an apocalyptic number.

It is an amenable number.

97090810189 is a deficient number, since it is larger than the sum of its proper divisors (3131961651).

97090810189 is a wasteful number, since it uses less digits than its factorization.

97090810189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131961650.

The product of its (nonzero) digits is 326592, while the sum is 52.

The spelling of 97090810189 in words is "ninety-seven billion, ninety million, eight hundred ten thousand, one hundred eighty-nine".