232890212569 has 27 divisors (see below), whose sum is σ = 275065804533. Its totient is φ = 196605943800.

The previous prime is 232890212561. The next prime is 232890212579. The reversal of 232890212569 is 965212098232.

It is a happy number.

The square root of 232890212569 is 482587.

It is a perfect power (a square), and thus also a powerful number.

232890212569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 232890212569 - 2³ = 232890212561 is a prime.

It is a super-2 number, since 2×232890212569² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232890212561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 239845254 + ... + 239846224.

Almost surely, 2^232890212569 is an apocalyptic number.

232890212569 is the 482587-th square number.

232890212569 is the 241294-th centered octagonal number.

It is an amenable number.

232890212569 is a deficient number, since it is larger than the sum of its proper divisors (42175591964).

232890212569 is an frugal number, since it uses more digits than its factorization.

232890212569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

Multiplying 232890212569 by its sum of digits (49), we get a square (11411620415881 = 3378109²).

232890212569 divided by its sum of digits (49) gives a square (4752861481 = 68941²).

The spelling of 232890212569 in words is "two hundred thirty-two billion, eight hundred ninety million, two hundred twelve thousand, five hundred sixty-nine".