21608347062 has 8 divisors (see below), whose sum is σ = 43216694136. Its totient is φ = 7202782352.

The previous prime is 21608347039. The next prime is 21608347109. The reversal of 21608347062 is 26074380612.

It is a happy number.

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

21608347062 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21608347062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800695583 + ... + 1800695594.

It is an arithmetic number, because the mean of its divisors is an integer number (5402086767).

Almost surely, 2^21608347062 is an apocalyptic number.

21608347062 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.

21608347062 is a wasteful number, since it uses less digits than its factorization.

21608347062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601391182.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 21608347062 in words is "twenty-one billion, six hundred eight million, three hundred forty-seven thousand, sixty-two".