7952129617 has 4 divisors (see below), whose sum is σ = 7954208100. Its totient is φ = 7950051136.

The previous prime is 7952129611. The next prime is 7952129623. The reversal of 7952129617 is 7169212597.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7952129611) and next prime (7952129623).

It can be written as a sum of positive squares in 2 ways, for example, as 5031916096 + 2920213521 = 70936^2 + 54039^2 .

It is a cyclic number.

It is not a de Polignac number, because 7952129617 - 2¹⁵ = 7952096849 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7952129611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033492 + ... + 1041157.

It is an arithmetic number, because the mean of its divisors is an integer number (1988552025).

Almost surely, 2^7952129617 is an apocalyptic number.

It is an amenable number.

7952129617 is a deficient number, since it is larger than the sum of its proper divisors (2078483).

7952129617 is a wasteful number, since it uses less digits than its factorization.

7952129617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078482.

The product of its digits is 476280, while the sum is 49.

The square root of 7952129617 is about 89174.7140001021. The cubic root of 7952129617 is about 1996.0028180068.

The spelling of 7952129617 in words is "seven billion, nine hundred fifty-two million, one hundred twenty-nine thousand, six hundred seventeen".