18523086210 has 64 divisors (see below), whose sum is σ = 50988303360. Its totient is φ = 4780149120.

The previous prime is 18523086209. The next prime is 18523086223. The reversal of 18523086210 is 1268032581.

It is a happy number.

18523086210 is a `hidden beast` number, since 1 + 8 + 5 + 23 + 0 + 8 + 621 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098147 + ... + 1114886.

It is an arithmetic number, because the mean of its divisors is an integer number (796692240).

Almost surely, 2^18523086210 is an apocalyptic number.

18523086210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18523086210 is an abundant number, since it is smaller than the sum of its proper divisors (32465217150).

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

18523086210 is a wasteful number, since it uses less digits than its factorization.

18523086210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213080 (or 2213074 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 18523086210 in words is "eighteen billion, five hundred twenty-three million, eighty-six thousand, two hundred ten".