97789078765 has 16 divisors (see below), whose sum is σ = 136847692800. Its totient is φ = 67055367120.

The previous prime is 97789078697. The next prime is 97789078813. The reversal of 97789078765 is 56787098779.

It is not a de Polignac number, because 97789078765 - 2⁷ = 97789078637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28508221 + ... + 28511650.

It is an arithmetic number, because the mean of its divisors is an integer number (8552980800).

Almost surely, 2^97789078765 is an apocalyptic number.

It is an amenable number.

97789078765 is a deficient number, since it is larger than the sum of its proper divisors (39058614035).

97789078765 is an equidigital number, since it uses as much as digits as its factorization.

97789078765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57019897 (or 57019883 counting only the distinct ones).

The product of its (nonzero) digits is 373403520, while the sum is 73.

The spelling of 97789078765 in words is "ninety-seven billion, seven hundred eighty-nine million, seventy-eight thousand, seven hundred sixty-five".