26200440642 has 8 divisors (see below), whose sum is σ = 52400881296. Its totient is φ = 8733480212.

The previous prime is 26200440641. The next prime is 26200440649. The reversal of 26200440642 is 24604400262.

It is a sphenic number, since it is the product of 3 distinct primes.

26200440642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (26200440641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183370048 + ... + 2183370059.

It is an arithmetic number, because the mean of its divisors is an integer number (6550110162).

Almost surely, 2^26200440642 is an apocalyptic number.

26200440642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26200440642 is a wasteful number, since it uses less digits than its factorization.

26200440642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366740112.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 26200440642 in words is "twenty-six billion, two hundred million, four hundred forty thousand, six hundred forty-two".