26891419798 has 4 divisors (see below), whose sum is σ = 40337129700. Its totient is φ = 13445709898.

The previous prime is 26891419783. The next prime is 26891419799. The reversal of 26891419798 is 89791419862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26891419799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722854948 + ... + 6722854951.

It is an arithmetic number, because the mean of its divisors is an integer number (10084282425).

Almost surely, 2^26891419798 is an apocalyptic number.

26891419798 is a deficient number, since it is larger than the sum of its proper divisors (13445709902).

26891419798 is a wasteful number, since it uses less digits than its factorization.

26891419798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445709901.

The product of its digits is 15676416, while the sum is 64.

Adding to 26891419798 its sum of digits (64), we get a palindrome (26891419862).

The spelling of 26891419798 in words is "twenty-six billion, eight hundred ninety-one million, four hundred nineteen thousand, seven hundred ninety-eight".