9212748913 has 8 divisors (see below), whose sum is σ = 9762880680. Its totient is φ = 8678113920.

The previous prime is 9212748911. The next prime is 9212748943. The reversal of 9212748913 is 3198472129.

It is a happy number.

9212748913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28976689 + 9183772224 = 5383^2 + 95832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9212748913 - 2¹ = 9212748911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9212748911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3872970 + ... + 3875347.

It is an arithmetic number, because the mean of its divisors is an integer number (1220360085).

Almost surely, 2^9212748913 is an apocalyptic number.

It is an amenable number.

9212748913 is a deficient number, since it is larger than the sum of its proper divisors (550131767).

9212748913 is a wasteful number, since it uses less digits than its factorization.

9212748913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7748387.

The product of its digits is 217728, while the sum is 46.

The square root of 9212748913 is about 95983.0657616228. The cubic root of 9212748913 is about 2096.3465511207.

The spelling of 9212748913 in words is "nine billion, two hundred twelve million, seven hundred forty-eight thousand, nine hundred thirteen".