181473947995008 has 64 divisors (see below), whose sum is σ = 482041591528320. Its totient is φ = 60491138158080.

The previous prime is 181473947994961. The next prime is 181473947995013. The reversal of 181473947995008 is 800599749374181.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 227954773 + ... + 228749483.

It is an arithmetic number, because the mean of its divisors is an integer number (7531899867630).

Almost surely, 2^{181473947995008} is an apocalyptic number.

It is an amenable number.

181473947995008 is an abundant number, since it is smaller than the sum of its proper divisors (300567643533312).

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

181473947995008 is an equidigital number, since it uses as much as digits as its factorization.

181473947995008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389395 (or 1389383 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 75.

The spelling of 181473947995008 in words is "one hundred eighty-one trillion, four hundred seventy-three billion, nine hundred forty-seven million, nine hundred ninety-five thousand, eight".