26813367440 has 20 divisors (see below), whose sum is σ = 62341079484. Its totient is φ = 10725346944.

The previous prime is 26813367439. The next prime is 26813367443. The reversal of 26813367440 is 4476331862.

It can be written as a sum of positive squares in 2 ways, for example, as 20703756544 + 6109610896 = 143888^2 + 78164^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26813367391 and 26813367400.

It is not an unprimeable number, because it can be changed into a prime (26813367443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167583467 + ... + 167583626.

Almost surely, 2^26813367440 is an apocalyptic number.

26813367440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26813367440 is an abundant number, since it is smaller than the sum of its proper divisors (35527712044).

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

26813367440 is a wasteful number, since it uses less digits than its factorization.

26813367440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335167106 (or 335167100 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 26813367440 in words is "twenty-six billion, eight hundred thirteen million, three hundred sixty-seven thousand, four hundred forty".