19019270672 has 20 divisors (see below), whose sum is σ = 36855518700. Its totient is φ = 9508169088.

The previous prime is 19019270671. The next prime is 19019270747. The reversal of 19019270672 is 27607291091.

It can be written as a sum of positive squares in 2 ways, for example, as 15177254416 + 3842016256 = 123196^2 + 61984^2 .

It is not an unprimeable number, because it can be changed into a prime (19019270671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19454 + ... + 196002.

It is an arithmetic number, because the mean of its divisors is an integer number (1842775935).

Almost surely, 2^19019270672 is an apocalyptic number.

It is an amenable number.

19019270672 is a deficient number, since it is larger than the sum of its proper divisors (17836248028).

19019270672 is a wasteful number, since it uses less digits than its factorization.

19019270672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183290 (or 183284 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 19019270672 in words is "nineteen billion, nineteen million, two hundred seventy thousand, six hundred seventy-two".