26280662406864 has 40 divisors (see below), whose sum is σ = 71464959179040. Its totient is φ = 8299156549248.

The previous prime is 26280662406863. The next prime is 26280662406881. The reversal of 26280662406864 is 46860426608262.

It is a junction number, because it is equal to n+sod(n) for n = 26280662406798 and 26280662406807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26280662406863) 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 7 ways as a sum of consecutive naturals, for example, 14408256987 + ... + 14408258810.

It is an arithmetic number, because the mean of its divisors is an integer number (1786623979476).

Almost surely, 2^{26280662406864} is an apocalyptic number.

26280662406864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26280662406864 is an abundant number, since it is smaller than the sum of its proper divisors (45184296772176).

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

26280662406864 is a wasteful number, since it uses less digits than its factorization.

26280662406864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28816515827 (or 28816515821 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 60.

The spelling of 26280662406864 in words is "twenty-six trillion, two hundred eighty billion, six hundred sixty-two million, four hundred six thousand, eight hundred sixty-four".