21826333356 has 12 divisors (see below), whose sum is σ = 50928111192. Its totient is φ = 7275444448.

The previous prime is 21826333349. The next prime is 21826333363. The reversal of 21826333356 is 65333362812.

It is an interprime number because it is at equal distance from previous prime (21826333349) and next prime (21826333363).

It is a tau number, because it is divible by the number of its divisors (12).

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, 909430545 + ... + 909430568.

It is an arithmetic number, because the mean of its divisors is an integer number (4244009266).

Almost surely, 2^21826333356 is an apocalyptic number.

It is an amenable number.

21826333356 is an abundant number, since it is smaller than the sum of its proper divisors (29101777836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21826333356 is a wasteful number, since it uses less digits than its factorization.

21826333356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818861120 (or 1818861118 counting only the distinct ones).

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

The spelling of 21826333356 in words is "twenty-one billion, eight hundred twenty-six million, three hundred thirty-three thousand, three hundred fifty-six".