12248091649 has 2 divisors, whose sum is σ = 12248091650. Its totient is φ = 12248091648.

The previous prime is 12248091631. The next prime is 12248091671. The reversal of 12248091649 is 94619084221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9073896049 + 3174195600 = 95257^2 + 56340^2 .

It is a cyclic number.

It is not a de Polignac number, because 12248091649 - 2⁷ = 12248091521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12248091599 and 12248091608.

It is not a weakly prime, because it can be changed into another prime (12248091679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124045824 + 6124045825.

It is an arithmetic number, because the mean of its divisors is an integer number (6124045825).

Almost surely, 2^12248091649 is an apocalyptic number.

It is an amenable number.

12248091649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12248091649 is an equidigital number, since it uses as much as digits as its factorization.

12248091649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 12248091649 in words is "twelve billion, two hundred forty-eight million, ninety-one thousand, six hundred forty-nine".