7664125279 has 2 divisors, whose sum is σ = 7664125280. Its totient is φ = 7664125278.

The previous prime is 7664125229. The next prime is 7664125303. The reversal of 7664125279 is 9725214667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7664125279 - 2¹¹ = 7664123231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7664125229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832062639 + 3832062640.

It is an arithmetic number, because the mean of its divisors is an integer number (3832062640).

Almost surely, 2^7664125279 is an apocalyptic number.

7664125279 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664125279 is an equidigital number, since it uses as much as digits as its factorization.

7664125279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 7664125279 is about 87544.9900279850. The cubic root of 7664125279 is about 1971.6093318760.

The spelling of 7664125279 in words is "seven billion, six hundred sixty-four million, one hundred twenty-five thousand, two hundred seventy-nine".