9967252776 has 64 divisors (see below), whose sum is σ = 27405907200. Its totient is φ = 3001590528.

The previous prime is 9967252747. The next prime is 9967252781. The reversal of 9967252776 is 6772527699.

It is a super-2 number, since 2×9967252776² (a number of 21 digits) contains 22 as substring.

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, 325191 + ... + 354518.

It is an arithmetic number, because the mean of its divisors is an integer number (428217300).

Almost surely, 2^9967252776 is an apocalyptic number.

It is an amenable number.

9967252776 is an abundant number, since it is smaller than the sum of its proper divisors (17438654424).

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

9967252776 is a wasteful number, since it uses less digits than its factorization.

9967252776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679778 (or 679774 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 60.

The square root of 9967252776 is about 99836.1296124805. The cubic root of 9967252776 is about 2152.0803930894.

The spelling of 9967252776 in words is "nine billion, nine hundred sixty-seven million, two hundred fifty-two thousand, seven hundred seventy-six".