181040088490 has 96 divisors (see below), whose sum is σ = 365710256640. Its totient is φ = 64293723648.

The previous prime is 181040088419. The next prime is 181040088521. The reversal of 181040088490 is 94880040181.

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 47 ways as a sum of consecutive naturals, for example, 14661259 + ... + 14673601.

It is an arithmetic number, because the mean of its divisors is an integer number (3809481840).

Almost surely, 2^181040088490 is an apocalyptic number.

181040088490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181040088490 is an abundant number, since it is smaller than the sum of its proper divisors (184670168150).

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

181040088490 is a wasteful number, since it uses less digits than its factorization.

181040088490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12644 (or 12625 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 181040088490 in words is "one hundred eighty-one billion, forty million, eighty-eight thousand, four hundred ninety".