97788288779 has 16 divisors (see below), whose sum is σ = 104007123360. Its totient is φ = 91677600000.

The previous prime is 97788288749. The next prime is 97788288847.

97788288779 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 97788288779 - 2¹² = 97788284683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97788288749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4096679 + ... + 4120479.

It is an arithmetic number, because the mean of its divisors is an integer number (6500445210).

Almost surely, 2^97788288779 is an apocalyptic number.

97788288779 is a deficient number, since it is larger than the sum of its proper divisors (6218834581).

97788288779 is a wasteful number, since it uses less digits than its factorization.

97788288779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26062.

The product of its digits is 1593188352, while the sum is 80.

The spelling of 97788288779 in words is "ninety-seven billion, seven hundred eighty-eight million, two hundred eighty-eight thousand, seven hundred seventy-nine".