26669546793472 has 240 divisors, whose sum is σ = 60059620938240. Its totient is φ = 11818300538880.

The previous prime is 26669546793427. The next prime is 26669546793499. The reversal of 26669546793472 is 27439764596662.

It is a happy number.

It is a super-2 number, since 2×26669546793472² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402592929 + ... + 402659167.

It is an arithmetic number, because the mean of its divisors is an integer number (250248420576).

Almost surely, 2^{26669546793472} is an apocalyptic number.

26669546793472 is a gapful number since it is divisible by the number (22) 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 26669546793472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30029810469120).

26669546793472 is an abundant number, since it is smaller than the sum of its proper divisors (33390074144768).

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

26669546793472 is an equidigital number, since it uses as much as digits as its factorization.

26669546793472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66443 (or 66416 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 76.

The spelling of 26669546793472 in words is "twenty-six trillion, six hundred sixty-nine billion, five hundred forty-six million, seven hundred ninety-three thousand, four hundred seventy-two".