26881221344 has 48 divisors (see below), whose sum is σ = 53188809408. Its totient is φ = 13373079552.

The previous prime is 26881221331. The next prime is 26881221373. The reversal of 26881221344 is 44312218862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11701604 + ... + 11703900.

It is an arithmetic number, because the mean of its divisors is an integer number (1108100196).

Almost surely, 2^26881221344 is an apocalyptic number.

It is an amenable number.

26881221344 is a deficient number, since it is larger than the sum of its proper divisors (26307588064).

26881221344 is a wasteful number, since it uses less digits than its factorization.

26881221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987 (or 3979 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The spelling of 26881221344 in words is "twenty-six billion, eight hundred eighty-one million, two hundred twenty-one thousand, three hundred forty-four".