442274555651 has 2 divisors, whose sum is σ = 442274555652. Its totient is φ = 442274555650.

The previous prime is 442274555633. The next prime is 442274555659. The reversal of 442274555651 is 156555472244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442274555651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442274555651.

It is not a weakly prime, because it can be changed into another prime (442274555659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221137277825 + 221137277826.

It is an arithmetic number, because the mean of its divisors is an integer number (221137277826).

Almost surely, 2^442274555651 is an apocalyptic number.

442274555651 is a deficient number, since it is larger than the sum of its proper divisors (1).

442274555651 is an equidigital number, since it uses as much as digits as its factorization.

442274555651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720000, while the sum is 50.

The spelling of 442274555651 in words is "four hundred forty-two billion, two hundred seventy-four million, five hundred fifty-five thousand, six hundred fifty-one".