451212043439 has 2 divisors, whose sum is σ = 451212043440. Its totient is φ = 451212043438.

The previous prime is 451212043433. The next prime is 451212043511. The reversal of 451212043439 is 934340212154.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451212043439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451212043433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225606021719 + 225606021720.

It is an arithmetic number, because the mean of its divisors is an integer number (225606021720).

Almost surely, 2^451212043439 is an apocalyptic number.

451212043439 is a deficient number, since it is larger than the sum of its proper divisors (1).

451212043439 is an equidigital number, since it uses as much as digits as its factorization.

451212043439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 451212043439 in words is "four hundred fifty-one billion, two hundred twelve million, forty-three thousand, four hundred thirty-nine".