97989744798979 has 16 divisors (see below), whose sum is σ = 107380814935680. Its totient is φ = 88679247607360.

The previous prime is 97989744798947. The next prime is 97989744798983.

97989744798979 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 97989744798979 - 2⁵ = 97989744798947 is a prime.

It is a super-2 number, since 2×97989744798979² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97989744798929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20207892 + ... + 24583294.

It is an arithmetic number, because the mean of its divisors is an integer number (6711300933480).

Almost surely, 2^{97989744798979} is an apocalyptic number.

97989744798979 is a deficient number, since it is larger than the sum of its proper divisors (9391070136701).

97989744798979 is a wasteful number, since it uses less digits than its factorization.

97989744798979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384610.

The product of its digits is 1306613597184, while the sum is 106.

The spelling of 97989744798979 in words is "ninety-seven trillion, nine hundred eighty-nine billion, seven hundred forty-four million, seven hundred ninety-eight thousand, nine hundred seventy-nine".