26632281636 has 81 divisors (see below), whose sum is σ = 68629725073. Its totient is φ = 8708031840.

The previous prime is 26632281581. The next prime is 26632281649. The reversal of 26632281636 is 63618223662.

It is a happy number.

The square root of 26632281636 is 163194.

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

26632281636 is a `hidden beast` number, since 2 + 6 + 6 + 3 + 2 + 2 + 8 + 1 + 636 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8536651236 + 18095630400 = 92394^2 + 134520^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26632281591 and 26632281600.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 57770446 + ... + 57770906.

Almost surely, 2^26632281636 is an apocalyptic number.

26632281636 is the 163194-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26632281636

26632281636 is an abundant number, since it is smaller than the sum of its proper divisors (41997443437).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26632281636 is an equidigital number, since it uses as much as digits as its factorization.

26632281636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 525 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 26632281636 in words is "twenty-six billion, six hundred thirty-two million, two hundred eighty-one thousand, six hundred thirty-six".