26446713144 has 64 divisors (see below), whose sum is σ = 68070240000. Its totient is φ = 8557274880.

The previous prime is 26446713143. The next prime is 26446713157. The reversal of 26446713144 is 44131764462.

It is a super-2 number, since 2×26446713144² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26446713096 and 26446713105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26446713143) 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, 128287 + ... + 263345.

It is an arithmetic number, because the mean of its divisors is an integer number (1063597500).

Almost surely, 2^26446713144 is an apocalyptic number.

26446713144 is a gapful number since it is divisible by the number (24) 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 26446713144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34035120000).

26446713144 is an abundant number, since it is smaller than the sum of its proper divisors (41623526856).

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

26446713144 is a wasteful number, since it uses less digits than its factorization.

26446713144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135308 (or 135304 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The spelling of 26446713144 in words is "twenty-six billion, four hundred forty-six million, seven hundred thirteen thousand, one hundred forty-four".