19018472316 has 12 divisors (see below), whose sum is σ = 44376435432. Its totient is φ = 6339490768.

The previous prime is 19018472311. The next prime is 19018472359. The reversal of 19018472316 is 61327481091.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19018472311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792436335 + ... + 792436358.

It is an arithmetic number, because the mean of its divisors is an integer number (3698036286).

Almost surely, 2^19018472316 is an apocalyptic number.

It is an amenable number.

19018472316 is an abundant number, since it is smaller than the sum of its proper divisors (25357963116).

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

19018472316 is a wasteful number, since it uses less digits than its factorization.

19018472316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584872700 (or 1584872698 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 19018472316 in words is "nineteen billion, eighteen million, four hundred seventy-two thousand, three hundred sixteen".