181488802842 has 24 divisors (see below), whose sum is σ = 397279616916. Its totient is φ = 59872594176.

The previous prime is 181488802837. The next prime is 181488802909. The reversal of 181488802842 is 248208884181.

It is a happy number.

181488802842 is a `hidden beast` number, since 1 + 8 + 1 + 488 + 80 + 2 + 84 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 180870733521 + 618069321 = 425289^2 + 24861^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51970993 + ... + 51974484.

Almost surely, 2^181488802842 is an apocalyptic number.

181488802842 is an abundant number, since it is smaller than the sum of its proper divisors (215790814074).

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

181488802842 is a wasteful number, since it uses less digits than its factorization.

181488802842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103945582 (or 103945579 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 54.

The spelling of 181488802842 in words is "one hundred eighty-one billion, four hundred eighty-eight million, eight hundred two thousand, eight hundred forty-two".