97658485679 has 4 divisors (see below), whose sum is σ = 97659368784. Its totient is φ = 97657602576.

The previous prime is 97658485657. The next prime is 97658485699.

97658485679 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97658485679 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 (97658485649) 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, 247142 + ... + 506355.

It is an arithmetic number, because the mean of its divisors is an integer number (24414842196).

Almost surely, 2^97658485679 is an apocalyptic number.

97658485679 is a deficient number, since it is larger than the sum of its proper divisors (883105).

97658485679 is a wasteful number, since it uses less digits than its factorization.

97658485679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883104.

The product of its digits is 914457600, while the sum is 74.

The spelling of 97658485679 in words is "ninety-seven billion, six hundred fifty-eight million, four hundred eighty-five thousand, six hundred seventy-nine".