181740234345 has 32 divisors (see below), whose sum is σ = 299035670400. Its totient is φ = 94214613504.

The previous prime is 181740234317. The next prime is 181740234409. The reversal of 181740234345 is 543432047181.

181740234345 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 181740234345 - 2⁷ = 181740234217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181740234297 and 181740234306.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1074922 + ... + 1232451.

It is an arithmetic number, because the mean of its divisors is an integer number (9344864700).

Almost surely, 2^181740234345 is an apocalyptic number.

181740234345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

181740234345 is a deficient number, since it is larger than the sum of its proper divisors (117295436055).

181740234345 is a wasteful number, since it uses less digits than its factorization.

181740234345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307529.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 181740234345 in words is "one hundred eighty-one billion, seven hundred forty million, two hundred thirty-four thousand, three hundred forty-five".