26821348878492 has 360 divisors, whose sum is σ = 84292316051328. Its totient is φ = 7407465811200.

The previous prime is 26821348878479. The next prime is 26821348878509. The reversal of 26821348878492 is 29487884312862.

26821348878492 is a `hidden beast` number, since 2 + 6 + 8 + 2 + 13 + 48 + 87 + 8 + 492 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26821348878492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 431589742 + ... + 431651882.

Almost surely, 2^{26821348878492} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26821348878492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42146158025664).

26821348878492 is an abundant number, since it is smaller than the sum of its proper divisors (57470967172836).

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

26821348878492 is a wasteful number, since it uses less digits than its factorization.

26821348878492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63079 (or 63061 counting only the distinct ones).

The product of its digits is 594542592, while the sum is 72.

The spelling of 26821348878492 in words is "twenty-six trillion, eight hundred twenty-one billion, three hundred forty-eight million, eight hundred seventy-eight thousand, four hundred ninety-two".