26297485075580 has 96 divisors (see below), whose sum is σ = 57531852080640. Its totient is φ = 10086165872640.

The previous prime is 26297485075579. The next prime is 26297485075637. The reversal of 26297485075580 is 8557058479262.

It is a self number, because there is not a number n which added to its sum of digits gives 26297485075580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33978356 + ... + 34743684.

It is an arithmetic number, because the mean of its divisors is an integer number (599290125840).

Almost surely, 2^{26297485075580} is an apocalyptic number.

26297485075580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26297485075580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28765926040320).

26297485075580 is an abundant number, since it is smaller than the sum of its proper divisors (31234367005060).

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

26297485075580 is a wasteful number, since it uses less digits than its factorization.

26297485075580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765879 (or 765877 counting only the distinct ones).

The product of its (nonzero) digits is 338688000, while the sum is 68.

The spelling of 26297485075580 in words is "twenty-six trillion, two hundred ninety-seven billion, four hundred eighty-five million, seventy-five thousand, five hundred eighty".