7442066789 has 2 divisors, whose sum is σ = 7442066790. Its totient is φ = 7442066788.

The previous prime is 7442066767. The next prime is 7442066867. The reversal of 7442066789 is 9876602447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6521854564 + 920212225 = 80758^2 + 30335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7442066789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7442066789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7442066719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3721033394 + 3721033395.

It is an arithmetic number, because the mean of its divisors is an integer number (3721033395).

Almost surely, 2^7442066789 is an apocalyptic number.

It is an amenable number.

7442066789 is a deficient number, since it is larger than the sum of its proper divisors (1).

7442066789 is an equidigital number, since it uses as much as digits as its factorization.

7442066789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The square root of 7442066789 is about 86267.4144100772. The cubic root of 7442066789 is about 1952.3807685611.

The spelling of 7442066789 in words is "seven billion, four hundred forty-two million, sixty-six thousand, seven hundred eighty-nine".