7869952729 has 2 divisors, whose sum is σ = 7869952730. Its totient is φ = 7869952728.

The previous prime is 7869952721. The next prime is 7869952789. The reversal of 7869952729 is 9272599687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7460295129 + 409657600 = 86373^2 + 20240^2 .

It is a cyclic number.

It is not a de Polignac number, because 7869952729 - 2³ = 7869952721 is a prime.

It is not a weakly prime, because it can be changed into another prime (7869952721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3934976364 + 3934976365.

It is an arithmetic number, because the mean of its divisors is an integer number (3934976365).

Almost surely, 2^7869952729 is an apocalyptic number.

It is an amenable number.

7869952729 is a deficient number, since it is larger than the sum of its proper divisors (1).

7869952729 is an equidigital number, since it uses as much as digits as its factorization.

7869952729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 64.

The square root of 7869952729 is about 88712.7540379623. The cubic root of 7869952729 is about 1989.1034680283.

The spelling of 7869952729 in words is "seven billion, eight hundred sixty-nine million, nine hundred fifty-two thousand, seven hundred twenty-nine".