21233676742 has 8 divisors (see below), whose sum is σ = 31907089656. Its totient is φ = 10597980192.

The previous prime is 21233676731. The next prime is 21233676743. The reversal of 21233676742 is 24767633212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233676743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9427683 + ... + 9429934.

It is an arithmetic number, because the mean of its divisors is an integer number (3988386207).

Almost surely, 2^21233676742 is an apocalyptic number.

21233676742 is a deficient number, since it is larger than the sum of its proper divisors (10673412914).

21233676742 is a wasteful number, since it uses less digits than its factorization.

21233676742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18858182.

The product of its digits is 508032, while the sum is 43.

The spelling of 21233676742 in words is "twenty-one billion, two hundred thirty-three million, six hundred seventy-six thousand, seven hundred forty-two".