21737730934 has 8 divisors (see below), whose sum is σ = 32620496328. Its totient is φ = 10864232160.

The previous prime is 21737730899. The next prime is 21737730947. The reversal of 21737730934 is 43903773712.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310787 + ... + 2320174.

It is an arithmetic number, because the mean of its divisors is an integer number (4077562041).

Almost surely, 2^21737730934 is an apocalyptic number.

21737730934 is a deficient number, since it is larger than the sum of its proper divisors (10882765394).

21737730934 is a wasteful number, since it uses less digits than its factorization.

21737730934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633310.

The product of its (nonzero) digits is 666792, while the sum is 46.

The spelling of 21737730934 in words is "twenty-one billion, seven hundred thirty-seven million, seven hundred thirty thousand, nine hundred thirty-four".