26163563244 has 384 divisors, whose sum is σ = 85918371840. Its totient is φ = 5994971136.

The previous prime is 26163563203. The next prime is 26163563263. The reversal of 26163563244 is 44236536162.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 26163563196 and 26163563205.

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, 12381132 + ... + 12383244.

It is an arithmetic number, because the mean of its divisors is an integer number (223745760).

Almost surely, 2^26163563244 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 26163563244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42959185920).

26163563244 is an abundant number, since it is smaller than the sum of its proper divisors (59754808596).

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

26163563244 is a wasteful number, since it uses less digits than its factorization.

26163563244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2207 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 26163563244 in words is "twenty-six billion, one hundred sixty-three million, five hundred sixty-three thousand, two hundred forty-four".