19186064716 has 48 divisors (see below), whose sum is σ = 41625573696. Its totient is φ = 7534669824.

The previous prime is 19186064699. The next prime is 19186064749. The reversal of 19186064716 is 61746068191.

It is a self number, because there is not a number n which added to its sum of digits gives 19186064716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142501 + ... + 242236.

It is an arithmetic number, because the mean of its divisors is an integer number (867199452).

Almost surely, 2^19186064716 is an apocalyptic number.

It is an amenable number.

19186064716 is an abundant number, since it is smaller than the sum of its proper divisors (22439508980).

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

19186064716 is a wasteful number, since it uses less digits than its factorization.

19186064716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384898 (or 384896 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 19186064716 in words is "nineteen billion, one hundred eighty-six million, sixty-four thousand, seven hundred sixteen".