26489466560 has 56 divisors (see below), whose sum is σ = 63188947536. Its totient is φ = 10577157120.

The previous prime is 26489466557. The next prime is 26489466571. The reversal of 26489466560 is 6566498462.

It is a junction number, because it is equal to n+sod(n) for n = 26489466496 and 26489466505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110234 + ... + 255206.

Almost surely, 2^26489466560 is an apocalyptic number.

26489466560 is a gapful number since it is divisible by the number (20) 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 26489466560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31594473768).

26489466560 is an abundant number, since it is smaller than the sum of its proper divisors (36699480976).

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

26489466560 is a wasteful number, since it uses less digits than its factorization.

26489466560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145561 (or 145551 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 26489466560 in words is "twenty-six billion, four hundred eighty-nine million, four hundred sixty-six thousand, five hundred sixty".