26559906480 has 400 divisors, whose sum is σ = 98071785504. Its totient is φ = 6638837760.

The previous prime is 26559906473. The next prime is 26559906491. The reversal of 26559906480 is 8460995562.

It is a happy number.

26559906480 is a `hidden beast` number, since 2 + 6 + 5 + 599 + 0 + 6 + 48 + 0 = 666.

It is a super-3 number, since 3×26559906480³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 50783499 + ... + 50784021.

Almost surely, 2^26559906480 is an apocalyptic number.

26559906480 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 26559906480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49035892752).

26559906480 is an abundant number, since it is smaller than the sum of its proper divisors (71511879024).

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

26559906480 is a wasteful number, since it uses less digits than its factorization.

26559906480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 26559906480 in words is "twenty-six billion, five hundred fifty-nine million, nine hundred six thousand, four hundred eighty".