25823634236416 has 33 divisors (see below), whose sum is σ = 51622375151811. Its totient is φ = 12911735811072.

The previous prime is 25823634236369. The next prime is 25823634236417. The reversal of 25823634236416 is 61463243632852.

The square root of 25823634236416 is 5081696.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25823634236417) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 162534871 + ... + 162693673.

Almost surely, 2^{25823634236416} is an apocalyptic number.

25823634236416 is the 5081696-th square number.

It is an amenable number.

25823634236416 is a deficient number, since it is larger than the sum of its proper divisors (25798740915395).

25823634236416 is an frugal number, since it uses more digits than its factorization.

25823634236416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317626 (or 158805 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 55.

The spelling of 25823634236416 in words is "twenty-five trillion, eight hundred twenty-three billion, six hundred thirty-four million, two hundred thirty-six thousand, four hundred sixteen".