26760065808 has 120 divisors (see below), whose sum is σ = 80738894880. Its totient is φ = 7615104000.

The previous prime is 26760065807. The next prime is 26760065809. The reversal of 26760065808 is 80856006762.

It is an interprime number because it is at equal distance from previous prime (26760065807) and next prime (26760065809).

It is a super-2 number, since 2×26760065808² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26760065807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567688 + ... + 613016.

It is an arithmetic number, because the mean of its divisors is an integer number (672824124).

Almost surely, 2^26760065808 is an apocalyptic number.

26760065808 is a gapful number since it is divisible by the number (28) 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 26760065808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40369447440).

26760065808 is an abundant number, since it is smaller than the sum of its proper divisors (53978829072).

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

26760065808 is a wasteful number, since it uses less digits than its factorization.

26760065808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45605 (or 45592 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 26760065808 in words is "twenty-six billion, seven hundred sixty million, sixty-five thousand, eight hundred eight".