21316830614 has 8 divisors (see below), whose sum is σ = 32137557408. Its totient is φ = 10604311480.

The previous prime is 21316830611. The next prime is 21316830637. The reversal of 21316830614 is 41603861312.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21316830611) by changing a digit.

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, 27051422 + ... + 27052209.

It is an arithmetic number, because the mean of its divisors is an integer number (4017194676).

Almost surely, 2^21316830614 is an apocalyptic number.

21316830614 is a deficient number, since it is larger than the sum of its proper divisors (10820726794).

21316830614 is a wasteful number, since it uses less digits than its factorization.

21316830614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54103830.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 21316830614 in words is "twenty-one billion, three hundred sixteen million, eight hundred thirty thousand, six hundred fourteen".