26323822643 has 4 divisors (see below), whose sum is σ = 26389468488. Its totient is φ = 26258176800.

The previous prime is 26323822523. The next prime is 26323822661. The reversal of 26323822643 is 34622832362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26323822643 - 2¹⁴ = 26323806259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26323822643.

It is not an unprimeable number, because it can be changed into a prime (26323822243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32822321 + ... + 32823122.

It is an arithmetic number, because the mean of its divisors is an integer number (6597367122).

Almost surely, 2^26323822643 is an apocalyptic number.

26323822643 is a deficient number, since it is larger than the sum of its proper divisors (65645845).

26323822643 is an equidigital number, since it uses as much as digits as its factorization.

26323822643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65645844.

The product of its digits is 497664, while the sum is 41.

The spelling of 26323822643 in words is "twenty-six billion, three hundred twenty-three million, eight hundred twenty-two thousand, six hundred forty-three".