26039394568512 has 672 divisors, whose sum is σ = 85483887350400. Its totient is φ = 7726442618880.

The previous prime is 26039394568511. The next prime is 26039394568519. The reversal of 26039394568512 is 21586549393062.

It is a happy number.

26039394568512 is a `hidden beast` number, since 2 + 6 + 0 + 3 + 93 + 9 + 456 + 85 + 12 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26039394568512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26039394568511) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6627484564 + ... + 6627488492.

It is an arithmetic number, because the mean of its divisors is an integer number (127208165700).

Almost surely, 2^{26039394568512} 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 26039394568512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42741943675200).

26039394568512 is an abundant number, since it is smaller than the sum of its proper divisors (59444492781888).

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

26039394568512 is a wasteful number, since it uses less digits than its factorization.

26039394568512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332 (or 4285 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 63.

The spelling of 26039394568512 in words is "twenty-six trillion, thirty-nine billion, three hundred ninety-four million, five hundred sixty-eight thousand, five hundred twelve".