2251513244329 has 2 divisors, whose sum is σ = 2251513244330. Its totient is φ = 2251513244328.

The previous prime is 2251513244261. The next prime is 2251513244377. The reversal of 2251513244329 is 9234423151522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2053775610000 + 197737634329 = 1433100^2 + 444677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251513244329 - 2¹¹ = 2251513242281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2251513844329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125756622164 + 1125756622165.

It is an arithmetic number, because the mean of its divisors is an integer number (1125756622165).

Almost surely, 2^{2251513244329} is an apocalyptic number.

It is an amenable number.

2251513244329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251513244329 is an equidigital number, since it uses as much as digits as its factorization.

2251513244329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The spelling of 2251513244329 in words is "two trillion, two hundred fifty-one billion, five hundred thirteen million, two hundred forty-four thousand, three hundred twenty-nine".