97786074775 has 12 divisors (see below), whose sum is σ = 121311539632. Its totient is φ = 78192210240.

The previous prime is 97786074767. The next prime is 97786074781. The reversal of 97786074775 is 57747068779.

It is not a de Polignac number, because 97786074775 - 2³ = 97786074767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97786074775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861747 + ... + 968596.

Almost surely, 2^97786074775 is an apocalyptic number.

97786074775 is a deficient number, since it is larger than the sum of its proper divisors (23525464857).

97786074775 is a wasteful number, since it uses less digits than its factorization.

97786074775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832490 (or 1832485 counting only the distinct ones).

The product of its (nonzero) digits is 145212480, while the sum is 67.

The spelling of 97786074775 in words is "ninety-seven billion, seven hundred eighty-six million, seventy-four thousand, seven hundred seventy-five".