234728549845 has 4 divisors (see below), whose sum is σ = 281674259820. Its totient is φ = 187782839872.

The previous prime is 234728549831. The next prime is 234728549863. The reversal of 234728549845 is 548945827432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26334473841 + 208394076004 = 162279^2 + 456502^2 .

It is a cyclic number.

It is not a de Polignac number, because 234728549845 - 2⁷ = 234728549717 is a prime.

It is a super-2 number, since 2×234728549845² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23472854980 + ... + 23472854989.

It is an arithmetic number, because the mean of its divisors is an integer number (70418564955).

Almost surely, 2^234728549845 is an apocalyptic number.

It is an amenable number.

234728549845 is a deficient number, since it is larger than the sum of its proper divisors (46945709975).

234728549845 is an equidigital number, since it uses as much as digits as its factorization.

234728549845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46945709974.

The product of its digits is 77414400, while the sum is 61.

The spelling of 234728549845 in words is "two hundred thirty-four billion, seven hundred twenty-eight million, five hundred forty-nine thousand, eight hundred forty-five".