97617698647 has 8 divisors (see below), whose sum is σ = 117434825600. Its totient is φ = 79268507064.

The previous prime is 97617698627. The next prime is 97617698671. The reversal of 97617698647 is 74689671679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97617698647 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 (97617698627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366983697 + ... + 366983962.

It is an arithmetic number, because the mean of its divisors is an integer number (14679353200).

Almost surely, 2^97617698647 is an apocalyptic number.

97617698647 is a deficient number, since it is larger than the sum of its proper divisors (19817126953).

97617698647 is a wasteful number, since it uses less digits than its factorization.

97617698647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733967685.

The product of its digits is 192036096, while the sum is 70.

The spelling of 97617698647 in words is "ninety-seven billion, six hundred seventeen million, six hundred ninety-eight thousand, six hundred forty-seven".