97646064679 has 4 divisors (see below), whose sum is σ = 101891545776. Its totient is φ = 93400583584.

The previous prime is 97646064671. The next prime is 97646064683.

97646064679 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97646064679 - 2³ = 97646064671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97646064679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97646064671) 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, 2122740514 + ... + 2122740559.

It is an arithmetic number, because the mean of its divisors is an integer number (25472886444).

Almost surely, 2^97646064679 is an apocalyptic number.

97646064679 is a deficient number, since it is larger than the sum of its proper divisors (4245481097).

97646064679 is a wasteful number, since it uses less digits than its factorization.

97646064679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245481096.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 97646064679 in words is "ninety-seven billion, six hundred forty-six million, sixty-four thousand, six hundred seventy-nine".