26443384446261 has 16 divisors (see below), whose sum is σ = 37114082792640. Its totient is φ = 16700832570240.

The previous prime is 26443384446191. The next prime is 26443384446277. The reversal of 26443384446261 is 16264448334462.

It is not a de Polignac number, because 26443384446261 - 2¹⁴ = 26443384429877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26443384446161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337441 + ... + 7280153.

It is an arithmetic number, because the mean of its divisors is an integer number (2319630174540).

Almost surely, 2^{26443384446261} is an apocalyptic number.

It is an amenable number.

26443384446261 is a deficient number, since it is larger than the sum of its proper divisors (10670698346379).

26443384446261 is a wasteful number, since it uses less digits than its factorization.

26443384446261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009556.

The product of its digits is 63700992, while the sum is 57.

The spelling of 26443384446261 in words is "twenty-six trillion, four hundred forty-three billion, three hundred eighty-four million, four hundred forty-six thousand, two hundred sixty-one".