26481954107844 has 243 divisors, whose sum is σ = 70315558473069. Its totient is φ = 8403313403520.

The previous prime is 26481954107839. The next prime is 26481954107891. The reversal of 26481954107844 is 44870145918462.

The square root of 26481954107844 is 5146062.

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

26481954107844 is a `hidden beast` number, since 2 + 6 + 4 + 8 + 1 + 9 + 541 + 0 + 7 + 84 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15032447208900 + 11449506898944 = 3877170^2 + 3383712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 69873229647 + ... + 69873230025.

Almost surely, 2^{26481954107844} is an apocalyptic number.

26481954107844 is the 5146062-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26481954107844

26481954107844 is an abundant number, since it is smaller than the sum of its proper divisors (43833604365225).

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

26481954107844 is an equidigital number, since it uses as much as digits as its factorization.

26481954107844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 63.

The spelling of 26481954107844 in words is "twenty-six trillion, four hundred eighty-one billion, nine hundred fifty-four million, one hundred seven thousand, eight hundred forty-four".