12449374901 has 2 divisors, whose sum is σ = 12449374902. Its totient is φ = 12449374900.

The previous prime is 12449374897. The next prime is 12449374943. The reversal of 12449374901 is 10947394421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8356702225 + 4092672676 = 91415^2 + 63974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12449374901 - 2² = 12449374897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12449374961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6224687450 + 6224687451.

It is an arithmetic number, because the mean of its divisors is an integer number (6224687451).

Almost surely, 2^12449374901 is an apocalyptic number.

It is an amenable number.

12449374901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12449374901 is an equidigital number, since it uses as much as digits as its factorization.

12449374901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 12449374901 in words is "twelve billion, four hundred forty-nine million, three hundred seventy-four thousand, nine hundred one".