26328047860 has 24 divisors (see below), whose sum is σ = 56332089576. Its totient is φ = 10332516480.

The previous prime is 26328047843. The next prime is 26328047899. The reversal of 26328047860 is 6874082362.

It can be written as a sum of positive squares in 4 ways, for example, as 3337603984 + 22990443876 = 57772^2 + 151626^2 .

It is a super-2 number, since 2×26328047860² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26328047860.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12417831 + ... + 12419950.

It is an arithmetic number, because the mean of its divisors is an integer number (2347170399).

Almost surely, 2^26328047860 is an apocalyptic number.

26328047860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26328047860 is an abundant number, since it is smaller than the sum of its proper divisors (30004041716).

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

26328047860 is a wasteful number, since it uses less digits than its factorization.

26328047860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24837843 (or 24837841 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 26328047860 in words is "twenty-six billion, three hundred twenty-eight million, forty-seven thousand, eight hundred sixty".