233921613828 has 48 divisors (see below), whose sum is σ = 624229652480. Its totient is φ = 66787745184.

The previous prime is 233921613799. The next prime is 233921613829. The reversal of 233921613828 is 828316129332.

It is not an unprimeable number, because it can be changed into a prime (233921613829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858958 + ... + 1098021.

Almost surely, 2^233921613828 is an apocalyptic number.

233921613828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

233921613828 is an abundant number, since it is smaller than the sum of its proper divisors (390308038652).

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

233921613828 is a wasteful number, since it uses less digits than its factorization.

233921613828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958416 (or 1958414 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The spelling of 233921613828 in words is "two hundred thirty-three billion, nine hundred twenty-one million, six hundred thirteen thousand, eight hundred twenty-eight".