26849157794638 has 8 divisors (see below), whose sum is σ = 42642780026832. Its totient is φ = 12634897785696.

The previous prime is 26849157794581. The next prime is 26849157794639. The reversal of 26849157794638 is 83649775194862.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26849157794639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394840555770 + ... + 394840555837.

It is an arithmetic number, because the mean of its divisors is an integer number (5330347503354).

Almost surely, 2^{26849157794638} is an apocalyptic number.

26849157794638 is a deficient number, since it is larger than the sum of its proper divisors (15793622232194).

26849157794638 is a wasteful number, since it uses less digits than its factorization.

26849157794638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789681111626.

The product of its digits is 4389396480, while the sum is 79.

The spelling of 26849157794638 in words is "twenty-six trillion, eight hundred forty-nine billion, one hundred fifty-seven million, seven hundred ninety-four thousand, six hundred thirty-eight".