26890673744 has 80 divisors (see below), whose sum is σ = 59464229760. Its totient is φ = 11660858880.

The previous prime is 26890673741. The next prime is 26890673753. The reversal of 26890673744 is 44737609862.

It is a self number, because there is not a number n which added to its sum of digits gives 26890673744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890673741) 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, 1566134 + ... + 1583210.

It is an arithmetic number, because the mean of its divisors is an integer number (743302872).

Almost surely, 2^26890673744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26890673744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29732114880).

26890673744 is an abundant number, since it is smaller than the sum of its proper divisors (32573556016).

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

26890673744 is a wasteful number, since it uses less digits than its factorization.

26890673744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508 (or 17502 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 26890673744 in words is "twenty-six billion, eight hundred ninety million, six hundred seventy-three thousand, seven hundred forty-four".