26646262426446 has 32 divisors (see below), whose sum is σ = 59243303067648. Its totient is φ = 7934370945120.

The previous prime is 26646262426439. The next prime is 26646262426457. The reversal of 26646262426446 is 64462426264662.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26646262426446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5509977406 + ... + 5509982241.

It is an arithmetic number, because the mean of its divisors is an integer number (1851353220864).

Almost surely, 2^{26646262426446} is an apocalyptic number.

26646262426446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26646262426446 is an abundant number, since it is smaller than the sum of its proper divisors (32597040641202).

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

26646262426446 is a wasteful number, since it uses less digits than its factorization.

26646262426446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019959696.

The product of its digits is 191102976, while the sum is 60.

The spelling of 26646262426446 in words is "twenty-six trillion, six hundred forty-six billion, two hundred sixty-two million, four hundred twenty-six thousand, four hundred forty-six".