21233649354 has 8 divisors (see below), whose sum is σ = 42467298720. Its totient is φ = 7077883116.

The previous prime is 21233649341. The next prime is 21233649401. The reversal of 21233649354 is 45394633212.

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

21233649354 is an admirable 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, 1769470774 + ... + 1769470785.

It is an arithmetic number, because the mean of its divisors is an integer number (5308412340).

Almost surely, 2^21233649354 is an apocalyptic number.

21233649354 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.

21233649354 is a wasteful number, since it uses less digits than its factorization.

21233649354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538941564.

The product of its digits is 466560, while the sum is 42.

The spelling of 21233649354 in words is "twenty-one billion, two hundred thirty-three million, six hundred forty-nine thousand, three hundred fifty-four".