7716744025 has 9 divisors (see below), whose sum is σ = 9569307261. Its totient is φ = 6173043840.

The previous prime is 7716744017. The next prime is 7716744031. The reversal of 7716744025 is 5204476177.

The square root of 7716744025 is 87845.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3882162249 + 3834581776 = 62307^2 + 61924^2 .

It is not a de Polignac number, because 7716744025 - 2³ = 7716744017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 430441 + ... + 448009.

Almost surely, 2^7716744025 is an apocalyptic number.

7716744025 is the 87845-th square number.

7716744025 is the 43923-rd centered octagonal number.

It is an amenable number.

7716744025 is a deficient number, since it is larger than the sum of its proper divisors (1852563236).

7716744025 is an frugal number, since it uses more digits than its factorization.

7716744025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35148 (or 17574 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The cubic root of 7716744025 is about 1976.1111324922. Note that the first 4 decimals are identical.

The spelling of 7716744025 in words is "seven billion, seven hundred sixteen million, seven hundred forty-four thousand, twenty-five".