26441361664 has 27 divisors (see below), whose sum is σ = 52784630563. Its totient is φ = 13219379968.

The previous prime is 26441361659. The next prime is 26441361673. The reversal of 26441361664 is 46616314462.

The square root of 26441361664 is 162608.

It is a perfect power (a square), and thus also a powerful number.

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 26441361664.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2596647 + ... + 2606809.

Almost surely, 2^26441361664 is an apocalyptic number.

26441361664 is the 162608-th square number.

It is an amenable number.

26441361664 is a deficient number, since it is larger than the sum of its proper divisors (26343268899).

26441361664 is an frugal number, since it uses more digits than its factorization.

26441361664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20342 (or 10165 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 26441361664 in words is "twenty-six billion, four hundred forty-one million, three hundred sixty-one thousand, six hundred sixty-four".