7842222407 has 2 divisors, whose sum is σ = 7842222408. Its totient is φ = 7842222406.

The previous prime is 7842222331. The next prime is 7842222413. The reversal of 7842222407 is 7042222487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7842222407 - 2¹² = 7842218311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7842222457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3921111203 + 3921111204.

It is an arithmetic number, because the mean of its divisors is an integer number (3921111204).

Almost surely, 2^7842222407 is an apocalyptic number.

7842222407 is a deficient number, since it is larger than the sum of its proper divisors (1).

7842222407 is an equidigital number, since it uses as much as digits as its factorization.

7842222407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 7842222407 is about 88556.3233597692. The cubic root of 7842222407 is about 1986.7644708499.

The spelling of 7842222407 in words is "seven billion, eight hundred forty-two million, two hundred twenty-two thousand, four hundred seven".