7564664444479 has 2 divisors, whose sum is σ = 7564664444480. Its totient is φ = 7564664444478.

The previous prime is 7564664444431. The next prime is 7564664444503. The reversal of 7564664444479 is 9744444664657.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7564664444479 - 2²¹ = 7564662347327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7564664444419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782332222239 + 3782332222240.

It is an arithmetic number, because the mean of its divisors is an integer number (3782332222240).

Almost surely, 2^{7564664444479} is an apocalyptic number.

7564664444479 is a deficient number, since it is larger than the sum of its proper divisors (1).

7564664444479 is an equidigital number, since it uses as much as digits as its factorization.

7564664444479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1950842880, while the sum is 70.

The spelling of 7564664444479 in words is "seven trillion, five hundred sixty-four billion, six hundred sixty-four million, four hundred forty-four thousand, four hundred seventy-nine".