26220400983396 has 45 divisors (see below), whose sum is σ = 68545548461929. Its totient is φ = 8740102937616.

The previous prime is 26220400983383. The next prime is 26220400983397. The reversal of 26220400983396 is 69338900402262.

The square root of 26220400983396 is 5120586.

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

26220400983396 is a `hidden beast` number, since 2 + 6 + 220 + 400 + 9 + 8 + 3 + 3 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7828859960100 + 18391541023296 = 2798010^2 + 4288536^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26220400983397) 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, 92028310 + ... + 92312786.

Almost surely, 2^{26220400983396} is an apocalyptic number.

26220400983396 is the 5120586-th square number.

It is an amenable number.

26220400983396 is an abundant number, since it is smaller than the sum of its proper divisors (42325147478533).

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

26220400983396 is an frugal number, since it uses more digits than its factorization.

26220400983396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568970 (or 284482 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 26220400983396 in words is "twenty-six trillion, two hundred twenty billion, four hundred million, nine hundred eighty-three thousand, three hundred ninety-six".