233728383855520 has 24 divisors (see below), whose sum is σ = 552183306859044. Its totient is φ = 93491353542144.

The previous prime is 233728383855487. The next prime is 233728383855523. The reversal of 233728383855520 is 25558383827332.

It can be written as a sum of positive squares in 2 ways, for example, as 233641129784976 + 87254070544 = 15285324^2 + 295388^2 .

It is not an unprimeable number, because it can be changed into a prime (233728383855523) 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, 730401199389 + ... + 730401199708.

Almost surely, 2^{233728383855520} is an apocalyptic number.

233728383855520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233728383855520 is an abundant number, since it is smaller than the sum of its proper divisors (318454923003524).

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

233728383855520 is a wasteful number, since it uses less digits than its factorization.

233728383855520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460802399112 (or 1460802399104 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 64.

The spelling of 233728383855520 in words is "two hundred thirty-three trillion, seven hundred twenty-eight billion, three hundred eighty-three million, eight hundred fifty-five thousand, five hundred twenty".