26526416520 has 128 divisors (see below), whose sum is σ = 81286416000. Its totient is φ = 6923028480.

The previous prime is 26526416503. The next prime is 26526416533. The reversal of 26526416520 is 2561462562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1613140 + ... + 1629500.

It is an arithmetic number, because the mean of its divisors is an integer number (635050125).

Almost surely, 2^26526416520 is an apocalyptic number.

26526416520 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 26526416520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40643208000).

26526416520 is an abundant number, since it is smaller than the sum of its proper divisors (54759999480).

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

26526416520 is a wasteful number, since it uses less digits than its factorization.

26526416520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16663 (or 16659 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 26526416520 in words is "twenty-six billion, five hundred twenty-six million, four hundred sixteen thousand, five hundred twenty".