181228263046 has 8 divisors (see below), whose sum is σ = 286149889080. Its totient is φ = 85844966688.

The previous prime is 181228263023. The next prime is 181228263053. The reversal of 181228263046 is 640362822181.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 181228262993 and 181228263011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384582371 + ... + 2384582446.

It is an arithmetic number, because the mean of its divisors is an integer number (35768736135).

Almost surely, 2^181228263046 is an apocalyptic number.

181228263046 is a deficient number, since it is larger than the sum of its proper divisors (104921626034).

181228263046 is a wasteful number, since it uses less digits than its factorization.

181228263046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769164838.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 181228263046 in words is "one hundred eighty-one billion, two hundred twenty-eight million, two hundred sixty-three thousand, forty-six".