26812193818 has 8 divisors (see below), whose sum is σ = 41515655040. Its totient is φ = 12973642140.

The previous prime is 26812193777. The next prime is 26812193831. The reversal of 26812193818 is 81839121862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216227308 + ... + 216227431.

It is an arithmetic number, because the mean of its divisors is an integer number (5189456880).

Almost surely, 2^26812193818 is an apocalyptic number.

26812193818 is a deficient number, since it is larger than the sum of its proper divisors (14703461222).

26812193818 is a wasteful number, since it uses less digits than its factorization.

26812193818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432454772.

The product of its digits is 331776, while the sum is 49.

The spelling of 26812193818 in words is "twenty-six billion, eight hundred twelve million, one hundred ninety-three thousand, eight hundred eighteen".