26220045646 has 8 divisors (see below), whose sum is σ = 39360396240. Its totient is φ = 13099913568.

The previous prime is 26220045637. The next prime is 26220045697. The reversal of 26220045646 is 64654002262.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051386 + ... + 5056573.

It is an arithmetic number, because the mean of its divisors is an integer number (4920049530).

Almost surely, 2^26220045646 is an apocalyptic number.

26220045646 is a deficient number, since it is larger than the sum of its proper divisors (13140350594).

26220045646 is a wasteful number, since it uses less digits than its factorization.

26220045646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109258.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 26220045646 in words is "twenty-six billion, two hundred twenty million, forty-five thousand, six hundred forty-six".