26804400016812 has 48 divisors (see below), whose sum is σ = 68233716157824. Its totient is φ = 8122029472000.

The previous prime is 26804400016783. The next prime is 26804400016817. The reversal of 26804400016812 is 21861000440862.

It is a super-2 number, since 2×26804400016812² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26804400016817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4361514 + ... + 8522417.

It is an arithmetic number, because the mean of its divisors is an integer number (1421535753288).

Almost surely, 2^{26804400016812} is an apocalyptic number.

26804400016812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26804400016812 is an abundant number, since it is smaller than the sum of its proper divisors (41429316141012).

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

26804400016812 is a wasteful number, since it uses less digits than its factorization.

26804400016812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899710 (or 12899708 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 26804400016812 in words is "twenty-six trillion, eight hundred four billion, four hundred million, sixteen thousand, eight hundred twelve".