97985648879 has 8 divisors (see below), whose sum is σ = 98164114512. Its totient is φ = 97807245120.

The previous prime is 97985648867. The next prime is 97985648911. The reversal of 97985648879 is 97884658979.

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

It is a cyclic number.

It is not a de Polignac number, because 97985648879 - 2⁸ = 97985648623 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 (97985644879) 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, 4152344 + ... + 4175874.

It is an arithmetic number, because the mean of its divisors is an integer number (12270514314).

Almost surely, 2^97985648879 is an apocalyptic number.

97985648879 is a deficient number, since it is larger than the sum of its proper divisors (178465633).

97985648879 is a wasteful number, since it uses less digits than its factorization.

97985648879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937.

The product of its digits is 2194698240, while the sum is 80.

The spelling of 97985648879 in words is "ninety-seven billion, nine hundred eighty-five million, six hundred forty-eight thousand, eight hundred seventy-nine".