97191489289 has 16 divisors (see below), whose sum is σ = 100043112960. Its totient is φ = 94363306240.

The previous prime is 97191489271. The next prime is 97191489301. The reversal of 97191489289 is 98298419179.

It is a cyclic number.

It is not a de Polignac number, because 97191489289 - 2⁹ = 97191488777 is a prime.

It is a super-3 number, since 3×97191489289³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97191489589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25798884 + ... + 25802650.

It is an arithmetic number, because the mean of its divisors is an integer number (6252694560).

Almost surely, 2^97191489289 is an apocalyptic number.

It is an amenable number.

97191489289 is a deficient number, since it is larger than the sum of its proper divisors (2851623671).

97191489289 is a wasteful number, since it uses less digits than its factorization.

97191489289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680.

The product of its digits is 23514624, while the sum is 67.

The spelling of 97191489289 in words is "ninety-seven billion, one hundred ninety-one million, four hundred eighty-nine thousand, two hundred eighty-nine".