18847480190 has 64 divisors (see below), whose sum is σ = 43755240960. Its totient is φ = 5671962240.

The previous prime is 18847480177. The next prime is 18847480247. The reversal of 18847480190 is 9108474881.

It is a happy number.

It is a super-2 number, since 2×18847480190² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 399692 + ... + 444351.

It is an arithmetic number, because the mean of its divisors is an integer number (683675640).

Almost surely, 2^18847480190 is an apocalyptic number.

18847480190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18847480190 is an abundant number, since it is smaller than the sum of its proper divisors (24907760770).

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

18847480190 is a wasteful number, since it uses less digits than its factorization.

18847480190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844097.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 18847480190 in words is "eighteen billion, eight hundred forty-seven million, four hundred eighty thousand, one hundred ninety".