26819457396 has 24 divisors (see below), whose sum is σ = 63604616544. Its totient is φ = 8793264480.

The previous prime is 26819457389. The next prime is 26819457449. The reversal of 26819457396 is 69375491862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18318570 + ... + 18320033.

It is an arithmetic number, because the mean of its divisors is an integer number (2650192356).

Almost surely, 2^26819457396 is an apocalyptic number.

It is an amenable number.

26819457396 is an abundant number, since it is smaller than the sum of its proper divisors (36785159148).

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

26819457396 is a wasteful number, since it uses less digits than its factorization.

26819457396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36638671 (or 36638669 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 26819457396 in words is "twenty-six billion, eight hundred nineteen million, four hundred fifty-seven thousand, three hundred ninety-six".