26641490438528 has 256 divisors, whose sum is σ = 65359672934400. Its totient is φ = 10557943087104.

The previous prime is 26641490438503. The next prime is 26641490438573. The reversal of 26641490438528 is 82583409414662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199182938 + ... + 199316646.

It is an arithmetic number, because the mean of its divisors is an integer number (255311222400).

Almost surely, 2^{26641490438528} is an apocalyptic number.

26641490438528 is a gapful number since it is divisible by the number (28) 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 26641490438528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32679836467200).

26641490438528 is an abundant number, since it is smaller than the sum of its proper divisors (38718182495872).

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

26641490438528 is a wasteful number, since it uses less digits than its factorization.

26641490438528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133977 (or 133965 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 62.

The spelling of 26641490438528 in words is "twenty-six trillion, six hundred forty-one billion, four hundred ninety million, four hundred thirty-eight thousand, five hundred twenty-eight".