9725235761 has 2 divisors, whose sum is σ = 9725235762. Its totient is φ = 9725235760.

The previous prime is 9725235727. The next prime is 9725235859. The reversal of 9725235761 is 1675325279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9219840400 + 505395361 = 96020^2 + 22481^2 .

It is a cyclic number.

It is not a de Polignac number, because 9725235761 - 2¹⁰ = 9725234737 is a prime.

It is not a weakly prime, because it can be changed into another prime (9725235461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4862617880 + 4862617881.

It is an arithmetic number, because the mean of its divisors is an integer number (4862617881).

Almost surely, 2^9725235761 is an apocalyptic number.

It is an amenable number.

9725235761 is a deficient number, since it is larger than the sum of its proper divisors (1).

9725235761 is an equidigital number, since it uses as much as digits as its factorization.

9725235761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 47.

The square root of 9725235761 is about 98616.6099650561. The cubic root of 9725235761 is about 2134.5191041020.

The spelling of 9725235761 in words is "nine billion, seven hundred twenty-five million, two hundred thirty-five thousand, seven hundred sixty-one".