97766988966779 has 16 divisors (see below), whose sum is σ = 112930052263776. Its totient is φ = 83649908736000.

The previous prime is 97766988966743. The next prime is 97766988966781.

97766988966779 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 97766988966779 - 2⁴⁴ = 80174802922363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97766988966739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12953579 + ... + 19061195.

It is an arithmetic number, because the mean of its divisors is an integer number (7058128266486).

Almost surely, 2^{97766988966779} is an apocalyptic number.

97766988966779 is a deficient number, since it is larger than the sum of its proper divisors (15163063296997).

97766988966779 is a wasteful number, since it uses less digits than its factorization.

97766988966779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193246.

The product of its digits is 1306613597184, while the sum is 104.

The spelling of 97766988966779 in words is "ninety-seven trillion, seven hundred sixty-six billion, nine hundred eighty-eight million, nine hundred sixty-six thousand, seven hundred seventy-nine".