26768155818 has 16 divisors (see below), whose sum is σ = 54269686656. Its totient is φ = 8800489440.

The previous prime is 26768155781. The next prime is 26768155829. The reversal of 26768155818 is 81855186762.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30556818 + ... + 30557693.

It is an arithmetic number, because the mean of its divisors is an integer number (3391855416).

Almost surely, 2^26768155818 is an apocalyptic number.

26768155818 is an abundant number, since it is smaller than the sum of its proper divisors (27501530838).

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

26768155818 is a wasteful number, since it uses less digits than its factorization.

26768155818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61114589.

The product of its digits is 6451200, while the sum is 57.

The spelling of 26768155818 in words is "twenty-six billion, seven hundred sixty-eight million, one hundred fifty-five thousand, eight hundred eighteen".