9249999972 has 12 divisors (see below), whose sum is σ = 21583333296. Its totient is φ = 3083333320.

The previous prime is 9249999971. The next prime is 9250000003. The reversal of 9249999972 is 2799999429.

9249999972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 9249999897 and 9249999906.

It is not an unprimeable number, because it can be changed into a prime (9249999971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385416654 + ... + 385416677.

It is an arithmetic number, because the mean of its divisors is an integer number (1798611108).

Almost surely, 2^9249999972 is an apocalyptic number.

It is an amenable number.

9249999972 is an abundant number, since it is smaller than the sum of its proper divisors (12333333324).

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

9249999972 is a wasteful number, since it uses less digits than its factorization.

9249999972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770833338 (or 770833336 counting only the distinct ones).

The product of its digits is 59521392, while the sum is 69.

The square root of 9249999972 is about 96176.9201627917. The cubic root of 9249999972 is about 2099.1682247861.

The spelling of 9249999972 in words is "nine billion, two hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred seventy-two".