19130271818 has 8 divisors (see below), whose sum is σ = 32794751712. Its totient is φ = 8198687916.

The previous prime is 19130271791. The next prime is 19130271859. The reversal of 19130271818 is 81817203191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×19130271818⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683223980 + ... + 683224007.

It is an arithmetic number, because the mean of its divisors is an integer number (4099343964).

Almost surely, 2^19130271818 is an apocalyptic number.

19130271818 is a deficient number, since it is larger than the sum of its proper divisors (13664479894).

19130271818 is a wasteful number, since it uses less digits than its factorization.

19130271818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366447996.

The product of its (nonzero) digits is 24192, while the sum is 41.

The spelling of 19130271818 in words is "nineteen billion, one hundred thirty million, two hundred seventy-one thousand, eight hundred eighteen".