26914565805625 has 15 divisors (see below), whose sum is σ = 33632603502267. Its totient is φ = 21531548886000.

The previous prime is 26914565805623. The next prime is 26914565805683. The reversal of 26914565805625 is 52650856541962.

The square root of 26914565805625 is 5187925.

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

It can be written as a sum of positive squares in 7 ways, for example, as 20656543232809 + 6258022572816 = 4544947^2 + 2501604^2 .

It is not a de Polignac number, because 26914565805625 - 2¹ = 26914565805623 is a prime.

It is a super-3 number, since 3×26914565805625³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26914565805623) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 129594367 + ... + 129801883.

Almost surely, 2^{26914565805625} is an apocalyptic number.

26914565805625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26914565805625 is the 5187925-th square number.

26914565805625 is the 2593963-rd centered octagonal number.

It is an amenable number.

26914565805625 is a deficient number, since it is larger than the sum of its proper divisors (6718037696642).

26914565805625 is an frugal number, since it uses more digits than its factorization.

26914565805625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415054 (or 207522 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 64.

The spelling of 26914565805625 in words is "twenty-six trillion, nine hundred fourteen billion, five hundred sixty-five million, eight hundred five thousand, six hundred twenty-five".