9774534056 has 64 divisors (see below), whose sum is σ = 21286665600. Its totient is φ = 4121010432.

The previous prime is 9774534053. The next prime is 9774534083. The reversal of 9774534056 is 6504354779.

It is a super-2 number, since 2×9774534056² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9774533995 and 9774534013.

It is not an unprimeable number, because it can be changed into a prime (9774534053) 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, 4009670 + ... + 4012106.

It is an arithmetic number, because the mean of its divisors is an integer number (332604150).

Almost surely, 2^9774534056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9774534056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10643332800).

9774534056 is an abundant number, since it is smaller than the sum of its proper divisors (11512131544).

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

9774534056 is a wasteful number, since it uses less digits than its factorization.

9774534056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586 (or 3582 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The square root of 9774534056 is about 98866.2432582527. The cubic root of 9774534056 is about 2138.1197313677.

The spelling of 9774534056 in words is "nine billion, seven hundred seventy-four million, five hundred thirty-four thousand, fifty-six".