21426524206 has 8 divisors (see below), whose sum is σ = 32140594584. Its totient is φ = 10712992680.

The previous prime is 21426524183. The next prime is 21426524233. The reversal of 21426524206 is 60242562412.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13485 + ... + 207448.

It is an arithmetic number, because the mean of its divisors is an integer number (4017574323).

Almost surely, 2^21426524206 is an apocalyptic number.

21426524206 is a deficient number, since it is larger than the sum of its proper divisors (10714070378).

21426524206 is a wasteful number, since it uses less digits than its factorization.

21426524206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269426.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 21426524206 in words is "twenty-one billion, four hundred twenty-six million, five hundred twenty-four thousand, two hundred six".