26642359983 has 4 divisors (see below), whose sum is σ = 35523146648. Its totient is φ = 17761573320.

The previous prime is 26642359973. The next prime is 26642360009. The reversal of 26642359983 is 38995324662.

It is a happy number.

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

It is not a de Polignac number, because 26642359983 - 2²⁰ = 26641311407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26642359903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4440393328 + ... + 4440393333.

It is an arithmetic number, because the mean of its divisors is an integer number (8880786662).

Almost surely, 2^26642359983 is an apocalyptic number.

26642359983 is a deficient number, since it is larger than the sum of its proper divisors (8880786665).

26642359983 is an equidigital number, since it uses as much as digits as its factorization.

26642359983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880786664.

The product of its digits is 16796160, while the sum is 57.

The spelling of 26642359983 in words is "twenty-six billion, six hundred forty-two million, three hundred fifty-nine thousand, nine hundred eighty-three".