26409780241 has 12 divisors (see below), whose sum is σ = 28803336240. Its totient is φ = 24202854000.

The previous prime is 26409780193. The next prime is 26409780247. The reversal of 26409780241 is 14208790462.

It is not a de Polignac number, because 26409780241 - 2²¹ = 26407683089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26409780247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538635 + ... + 585616.

It is an arithmetic number, because the mean of its divisors is an integer number (2400278020).

Almost surely, 2^26409780241 is an apocalyptic number.

It is an amenable number.

26409780241 is a deficient number, since it is larger than the sum of its proper divisors (2393555999).

26409780241 is a wasteful number, since it uses less digits than its factorization.

26409780241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124416 (or 1124403 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 26409780241 in words is "twenty-six billion, four hundred nine million, seven hundred eighty thousand, two hundred forty-one".