9312215449 has 4 divisors (see below), whose sum is σ = 9313200000. Its totient is φ = 9311230900.

The previous prime is 9312215447. The next prime is 9312215467. The reversal of 9312215449 is 9445122139.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9312215449 - 2¹ = 9312215447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9312215441) 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, 477949 + ... + 497050.

It is an arithmetic number, because the mean of its divisors is an integer number (2328300000).

Almost surely, 2^9312215449 is an apocalyptic number.

It is an amenable number.

9312215449 is a deficient number, since it is larger than the sum of its proper divisors (984551).

9312215449 is an equidigital number, since it uses as much as digits as its factorization.

9312215449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984550.

The product of its digits is 77760, while the sum is 40.

The square root of 9312215449 is about 96499.8209791086. The cubic root of 9312215449 is about 2103.8640458767.

The spelling of 9312215449 in words is "nine billion, three hundred twelve million, two hundred fifteen thousand, four hundred forty-nine".