19019329744 has 10 divisors (see below), whose sum is σ = 36849951410. Its totient is φ = 9509664864.

The previous prime is 19019329723. The next prime is 19019329757. The reversal of 19019329744 is 44792391091.

It can be written as a sum of positive squares in only one way, i.e., 17758227600 + 1261102144 = 133260^2 + 35512^2 .

It is a super-2 number, since 2×19019329744² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 594354039 + ... + 594354070.

It is an arithmetic number, because the mean of its divisors is an integer number (3684995141).

Almost surely, 2^19019329744 is an apocalyptic number.

It is an amenable number.

19019329744 is a deficient number, since it is larger than the sum of its proper divisors (17830621666).

19019329744 is a wasteful number, since it uses less digits than its factorization.

19019329744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188708117 (or 1188708111 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 19019329744 in words is "nineteen billion, nineteen million, three hundred twenty-nine thousand, seven hundred forty-four".