26786808783 has 72 divisors (see below), whose sum is σ = 46815704208. Its totient is φ = 15260990976.

The previous prime is 26786808781. The next prime is 26786808809. The reversal of 26786808783 is 38780868762.

It is not a de Polignac number, because 26786808783 - 2¹ = 26786808781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 26786808783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26786808781) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4199985 + ... + 4206357.

It is an arithmetic number, because the mean of its divisors is an integer number (650218114).

Almost surely, 2^26786808783 is an apocalyptic number.

26786808783 is a deficient number, since it is larger than the sum of its proper divisors (20028895425).

26786808783 is an equidigital number, since it uses as much as digits as its factorization.

26786808783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755 (or 6736 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 26786808783 in words is "twenty-six billion, seven hundred eighty-six million, eight hundred eight thousand, seven hundred eighty-three".