26493421824 has 81 divisors (see below), whose sum is σ = 76409599539. Its totient is φ = 8828536320.

The previous prime is 26493421819. The next prime is 26493421847. The reversal of 26493421824 is 42812439462.

The square root of 26493421824 is 162768.

It is a perfect power (a square), and thus also a powerful number.

26493421824 is a `hidden beast` number, since 2 + 64 + 93 + 421 + 82 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 26493421824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7811169 + ... + 7814559.

Almost surely, 2^26493421824 is an apocalyptic number.

26493421824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

26493421824 is the 162768-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26493421824

26493421824 is an abundant number, since it is smaller than the sum of its proper divisors (49916177715).

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

26493421824 is an frugal number, since it uses more digits than its factorization.

26493421824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804 (or 3396 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 26493421824 in words is "twenty-six billion, four hundred ninety-three million, four hundred twenty-one thousand, eight hundred twenty-four".