26644240896 has 320 divisors, whose sum is σ = 92509579008. Its totient is φ = 6613106688.

The previous prime is 26644240867. The next prime is 26644240897. The reversal of 26644240896 is 69804244662.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (26644240897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2370586 + ... + 2381798.

Almost surely, 2^26644240896 is an apocalyptic number.

26644240896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26644240896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46254789504).

26644240896 is an abundant number, since it is smaller than the sum of its proper divisors (65865338112).

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

26644240896 is a wasteful number, since it uses less digits than its factorization.

26644240896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11271 (or 11255 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 26644240896 in words is "twenty-six billion, six hundred forty-four million, two hundred forty thousand, eight hundred ninety-six".