21833333380 has 24 divisors (see below), whose sum is σ = 45868136832. Its totient is φ = 8729878752.

The previous prime is 21833333363. The next prime is 21833333429. The reversal of 21833333380 is 8333333812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163782 + ... + 265501.

It is an arithmetic number, because the mean of its divisors is an integer number (1911172368).

Almost surely, 2^21833333380 is an apocalyptic number.

21833333380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21833333380 is an abundant number, since it is smaller than the sum of its proper divisors (24034803452).

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

21833333380 is a wasteful number, since it uses less digits than its factorization.

21833333380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431835 (or 431833 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 21833333380 in words is "twenty-one billion, eight hundred thirty-three million, three hundred thirty-three thousand, three hundred eighty".