26743409549 has 16 divisors (see below), whose sum is σ = 28950281280. Its totient is φ = 24625411200.

The previous prime is 26743409531. The next prime is 26743409569. The reversal of 26743409549 is 94590434762.

It is not a de Polignac number, because 26743409549 - 2¹² = 26743405453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26743409549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26743409519) 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, 16352 + ... + 231849.

It is an arithmetic number, because the mean of its divisors is an integer number (1809392580).

Almost surely, 2^26743409549 is an apocalyptic number.

It is an amenable number.

26743409549 is a deficient number, since it is larger than the sum of its proper divisors (2206871731).

26743409549 is a wasteful number, since it uses less digits than its factorization.

26743409549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248380.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 26743409549 in words is "twenty-six billion, seven hundred forty-three million, four hundred nine thousand, five hundred forty-nine".