9797771586552 has 32 divisors (see below), whose sum is σ = 24495529842000. Its totient is φ = 3265777078784.

The previous prime is 9797771586529. The next prime is 9797771586607. The reversal of 9797771586552 is 2556851777979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8628177 + ... + 9697472.

Almost surely, 2^{9797771586552} is an apocalyptic number.

It is an amenable number.

9797771586552 is an abundant number, since it is smaller than the sum of its proper divisors (14697758255448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9797771586552 is a wasteful number, since it uses less digits than its factorization.

9797771586552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18347935 (or 18347931 counting only the distinct ones).

The product of its digits is 2333772000, while the sum is 78.

The spelling of 9797771586552 in words is "nine trillion, seven hundred ninety-seven billion, seven hundred seventy-one million, five hundred eighty-six thousand, five hundred fifty-two".