180068406498 has 18 divisors (see below), whose sum is σ = 390152114859. Its totient is φ = 60022202052.

The previous prime is 180068406487. The next prime is 180068406499. The reversal of 180068406498 is 894604860081.

It can be written as a sum of positive squares in only one way, i.e., 90034203249 + 90034203249 = 300057^2 + 300057^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=300057.

It is not an unprimeable number, because it can be changed into a prime (180068406499) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1750333 + ... + 1850351.

Almost surely, 2^180068406498 is an apocalyptic number.

180068406498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180068406498 is an abundant number, since it is smaller than the sum of its proper divisors (210083708361).

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

180068406498 is an frugal number, since it uses more digits than its factorization.

180068406498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200046 (or 100024 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 180068406498 in words is "one hundred eighty billion, sixty-eight million, four hundred six thousand, four hundred ninety-eight".