42246444416651 has 2 divisors, whose sum is σ = 42246444416652. Its totient is φ = 42246444416650.

The previous prime is 42246444416609. The next prime is 42246444416663. The reversal of 42246444416651 is 15661444464224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42246444416651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42246444416593 and 42246444416602.

It is not a weakly prime, because it can be changed into another prime (42246440416651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21123222208325 + 21123222208326.

It is an arithmetic number, because the mean of its divisors is an integer number (21123222208326).

Almost surely, 2^{42246444416651} is an apocalyptic number.

42246444416651 is a deficient number, since it is larger than the sum of its proper divisors (1).

42246444416651 is an equidigital number, since it uses as much as digits as its factorization.

42246444416651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17694720, while the sum is 53.

The spelling of 42246444416651 in words is "forty-two trillion, two hundred forty-six billion, four hundred forty-four million, four hundred sixteen thousand, six hundred fifty-one".