9977297712 has 20 divisors (see below), whose sum is σ = 25774685880. Its totient is φ = 3325765888.

The previous prime is 9977297633. The next prime is 9977297713. The reversal of 9977297712 is 2177927799.

It is not an unprimeable number, because it can be changed into a prime (9977297713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103930137 + ... + 103930232.

It is an arithmetic number, because the mean of its divisors is an integer number (1288734294).

Almost surely, 2^9977297712 is an apocalyptic number.

It is an amenable number.

9977297712 is an abundant number, since it is smaller than the sum of its proper divisors (15797388168).

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

9977297712 is a wasteful number, since it uses less digits than its factorization.

9977297712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207860380 (or 207860374 counting only the distinct ones).

The product of its digits is 7001316, while the sum is 60.

The square root of 9977297712 is about 99886.4240625321. The cubic root of 9977297712 is about 2152.8031014882.

The spelling of 9977297712 in words is "nine billion, nine hundred seventy-seven million, two hundred ninety-seven thousand, seven hundred twelve".