26066778 has 16 divisors (see below), whose sum is σ = 53117856. Its totient is φ = 8524880.

The previous prime is 26066749. The next prime is 26066779. The reversal of 26066778 is 87766062.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (26066779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40668 + ... + 41303.

It is an arithmetic number, because the mean of its divisors is an integer number (3319866).

Almost surely, 2^26066778 is an apocalyptic number.

26066778 is an abundant number, since it is smaller than the sum of its proper divisors (27051078).

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

26066778 is a wasteful number, since it uses less digits than its factorization.

26066778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82029.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 26066778 is about 5105.5634360960. The cubic root of 26066778 is about 296.5030176564.

The spelling of 26066778 in words is "twenty-six million, sixty-six thousand, seven hundred seventy-eight".