12390572849 has 4 divisors (see below), whose sum is σ = 12464768064. Its totient is φ = 12316377636.

The previous prime is 12390572837. The next prime is 12390572863. The reversal of 12390572849 is 94827509321.

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 12390572849 - 2⁴ = 12390572833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12390572797 and 12390572806.

It is not an unprimeable number, because it can be changed into a prime (12390572879) 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, 37097357 + ... + 37097690.

It is an arithmetic number, because the mean of its divisors is an integer number (3116192016).

Almost surely, 2^12390572849 is an apocalyptic number.

It is an amenable number.

12390572849 is a deficient number, since it is larger than the sum of its proper divisors (74195215).

12390572849 is an equidigital number, since it uses as much as digits as its factorization.

12390572849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74195214.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 12390572849 in words is "twelve billion, three hundred ninety million, five hundred seventy-two thousand, eight hundred forty-nine".