26426206264440 has 64 divisors (see below), whose sum is σ = 79279041484800. Its totient is φ = 7046950764672.

The previous prime is 26426206264439. The next prime is 26426206264441. The reversal of 26426206264440 is 4446260262462.

It is an interprime number because it is at equal distance from previous prime (26426206264439) and next prime (26426206264441).

It is a self number, because there is not a number n which added to its sum of digits gives 26426206264440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26426206264441) 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, 27648369 + ... + 28588191.

It is an arithmetic number, because the mean of its divisors is an integer number (1238735023200).

Almost surely, 2^{26426206264440} is an apocalyptic number.

26426206264440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26426206264440 is an abundant number, since it is smaller than the sum of its proper divisors (52852835220360).

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

26426206264440 is a wasteful number, since it uses less digits than its factorization.

26426206264440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174156 (or 1174152 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 26426206264440 in words is "twenty-six trillion, four hundred twenty-six billion, two hundred six million, two hundred sixty-four thousand, four hundred forty".