182171897802 has 64 divisors (see below), whose sum is σ = 406292169600. Its totient is φ = 60504433920.

The previous prime is 182171897797. The next prime is 182171897821. The reversal of 182171897802 is 208798171281.

182171897802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 24166578 + ... + 24174114.

It is an arithmetic number, because the mean of its divisors is an integer number (6348315150).

Almost surely, 2^182171897802 is an apocalyptic number.

182171897802 is an abundant number, since it is smaller than the sum of its proper divisors (224120271798).

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

182171897802 is a wasteful number, since it uses less digits than its factorization.

182171897802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9108 (or 9102 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 54.

Adding to 182171897802 its sum of digits (54), we get a square (182171897856 = 426816²).

The spelling of 182171897802 in words is "one hundred eighty-two billion, one hundred seventy-one million, eight hundred ninety-seven thousand, eight hundred two".