25699647748324 has 27 divisors (see below), whose sum is σ = 49434867535683. Its totient is φ = 11681607372600.

The previous prime is 25699647748273. The next prime is 25699647748337. The reversal of 25699647748324 is 42384774699652.

The square root of 25699647748324 is 5069482.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 111413389 + ... + 111643819.

Almost surely, 2^{25699647748324} is an apocalyptic number.

25699647748324 is the 5069482-nd square number.

It is an amenable number.

25699647748324 is a deficient number, since it is larger than the sum of its proper divisors (23735219787359).

25699647748324 is an frugal number, since it uses more digits than its factorization.

25699647748324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460888 (or 230444 counting only the distinct ones).

The product of its digits is 4389396480, while the sum is 76.

The spelling of 25699647748324 in words is "twenty-five trillion, six hundred ninety-nine billion, six hundred forty-seven million, seven hundred forty-eight thousand, three hundred twenty-four".