97816517289 has 6 divisors (see below), whose sum is σ = 141290524986. Its totient is φ = 65211011520.

The previous prime is 97816517287. The next prime is 97816517321. The reversal of 97816517289 is 98271561879.

97816517289 is a `hidden beast` number, since 97 + 8 + 1 + 6 + 517 + 28 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55170963225 + 42645554064 = 234885^2 + 206508^2 .

It is not a de Polignac number, because 97816517289 - 2¹ = 97816517287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97816517287) 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, 5434250952 + ... + 5434250969.

It is an arithmetic number, because the mean of its divisors is an integer number (23548420831).

Almost surely, 2^97816517289 is an apocalyptic number.

It is an amenable number.

97816517289 is a deficient number, since it is larger than the sum of its proper divisors (43474007697).

97816517289 is a wasteful number, since it uses less digits than its factorization.

97816517289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10868501927 (or 10868501924 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 63.

The spelling of 97816517289 in words is "ninety-seven billion, eight hundred sixteen million, five hundred seventeen thousand, two hundred eighty-nine".