21233533274 has 8 divisors (see below), whose sum is σ = 31993127040. Its totient is φ = 10569157596.

The previous prime is 21233533271. The next prime is 21233533283. The reversal of 21233533274 is 47233533212.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (21233533271) 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, 23803964 + ... + 23804855.

It is an arithmetic number, because the mean of its divisors is an integer number (3999140880).

Almost surely, 2^21233533274 is an apocalyptic number.

21233533274 is a deficient number, since it is larger than the sum of its proper divisors (10759593766).

21233533274 is a wasteful number, since it uses less digits than its factorization.

21233533274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47609044.

The product of its digits is 90720, while the sum is 35.

The spelling of 21233533274 in words is "twenty-one billion, two hundred thirty-three million, five hundred thirty-three thousand, two hundred seventy-four".