26494398441 has 81 divisors (see below), whose sum is σ = 46676013111. Its totient is φ = 14438438784.

The previous prime is 26494398433. The next prime is 26494398449. The reversal of 26494398441 is 14489349462.

The square root of 26494398441 is 162771.

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

26494398441 is a `hidden beast` number, since 2 + 6 + 494 + 39 + 84 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (26494398433) and next prime (26494398449).

It can be written as a sum of positive squares in only one way, i.e., 7144475625 + 19349922816 = 84525^2 + 139104^2 .

It is not a de Polignac number, because 26494398441 - 2³ = 26494398433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26494398449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 78618225 + ... + 78618561.

Almost surely, 2^26494398441 is an apocalyptic number.

26494398441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26494398441 is the 162771-st square number.

26494398441 is the 81386-th centered octagonal number.

It is an amenable number.

26494398441 is a deficient number, since it is larger than the sum of its proper divisors (20181614670).

26494398441 is an equidigital number, since it uses as much as digits as its factorization.

26494398441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 370 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 26494398441 in words is "twenty-six billion, four hundred ninety-four million, three hundred ninety-eight thousand, four hundred forty-one".