21337473715 has 8 divisors (see below), whose sum is σ = 25624809648. Its totient is φ = 17056751520.

The previous prime is 21337473709. The next prime is 21337473739. The reversal of 21337473715 is 51737473312.

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

It is not a de Polignac number, because 21337473715 - 2¹¹ = 21337471667 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 1646332 + ... + 1659241.

It is an arithmetic number, because the mean of its divisors is an integer number (3203101206).

Almost surely, 2^21337473715 is an apocalyptic number.

21337473715 is a deficient number, since it is larger than the sum of its proper divisors (4287335933).

21337473715 is a wasteful number, since it uses less digits than its factorization.

21337473715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306869.

The product of its digits is 370440, while the sum is 43.

The spelling of 21337473715 in words is "twenty-one billion, three hundred thirty-seven million, four hundred seventy-three thousand, seven hundred fifteen".