234813782569 has 8 divisors (see below), whose sum is σ = 240231306240. Its totient is φ = 229413820896.

The previous prime is 234813782561. The next prime is 234813782579. The reversal of 234813782569 is 965287318432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234813782569 - 2³ = 234813782561 is a prime.

It is a super-2 number, since 2×234813782569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234813782561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363449 + ... + 4416934.

It is an arithmetic number, because the mean of its divisors is an integer number (30028913280).

Almost surely, 2^234813782569 is an apocalyptic number.

It is an amenable number.

234813782569 is a deficient number, since it is larger than the sum of its proper divisors (5417523671).

234813782569 is an equidigital number, since it uses as much as digits as its factorization.

234813782569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780999.

The product of its digits is 17418240, while the sum is 58.

The spelling of 234813782569 in words is "two hundred thirty-four billion, eight hundred thirteen million, seven hundred eighty-two thousand, five hundred sixty-nine".