26797141644 has 384 divisors, whose sum is σ = 85114552320. Its totient is φ = 6363878400.

The previous prime is 26797141621. The next prime is 26797141673. The reversal of 26797141644 is 44614179762.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39234127 + ... + 39234809.

It is an arithmetic number, because the mean of its divisors is an integer number (221652480).

Almost surely, 2^26797141644 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 26797141644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42557276160).

26797141644 is an abundant number, since it is smaller than the sum of its proper divisors (58317410676).

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

26797141644 is a wasteful number, since it uses less digits than its factorization.

26797141644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 26797141644 in words is "twenty-six billion, seven hundred ninety-seven million, one hundred forty-one thousand, six hundred forty-four".