181428479286 has 12 divisors (see below), whose sum is σ = 362859045276. Its totient is φ = 60475811980.

The previous prime is 181428479261. The next prime is 181428479303. The reversal of 181428479286 is 682974824181.

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 5 ways as a sum of consecutive naturals, for example, 956401 + ... + 1130291.

It is an arithmetic number, because the mean of its divisors is an integer number (30238253773).

Almost surely, 2^181428479286 is an apocalyptic number.

181428479286 is an abundant number, since it is smaller than the sum of its proper divisors (181430565990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181428479286 is an frugal number, since it uses more digits than its factorization.

181428479286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347787 (or 173896 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 60.

The spelling of 181428479286 in words is "one hundred eighty-one billion, four hundred twenty-eight million, four hundred seventy-nine thousand, two hundred eighty-six".