7664125503569 has 2 divisors, whose sum is σ = 7664125503570. Its totient is φ = 7664125503568.

The previous prime is 7664125503547. The next prime is 7664125503577. The reversal of 7664125503569 is 9653055214667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7558897929025 + 105227574544 = 2749345^2 + 324388^2 .

It is a cyclic number.

It is not a de Polignac number, because 7664125503569 - 2³⁶ = 7595406026833 is a prime.

It is a super-2 number, since 2×7664125503569² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7664125503469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832062751784 + 3832062751785.

It is an arithmetic number, because the mean of its divisors is an integer number (3832062751785).

Almost surely, 2^{7664125503569} is an apocalyptic number.

It is an amenable number.

7664125503569 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664125503569 is an equidigital number, since it uses as much as digits as its factorization.

7664125503569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824000, while the sum is 59.

The spelling of 7664125503569 in words is "seven trillion, six hundred sixty-four billion, one hundred twenty-five million, five hundred three thousand, five hundred sixty-nine".