9912199488 has 28 divisors (see below), whose sum is σ = 26226028320. Its totient is φ = 3304066432.

The previous prime is 9912199487. The next prime is 9912199499. The reversal of 9912199488 is 8849912199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912199487) 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, 25812828 + ... + 25813211.

Almost surely, 2^9912199488 is an apocalyptic number.

It is an amenable number.

9912199488 is an abundant number, since it is smaller than the sum of its proper divisors (16313828832).

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

9912199488 is a wasteful number, since it uses less digits than its factorization.

9912199488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51626054 (or 51626044 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 60.

The square root of 9912199488 is about 99560.0295701041. The cubic root of 9912199488 is about 2148.1107967636.

The spelling of 9912199488 in words is "nine billion, nine hundred twelve million, one hundred ninety-nine thousand, four hundred eighty-eight".