19001009002 has 16 divisors (see below), whose sum is σ = 28791143424. Its totient is φ = 9404010000.

The previous prime is 19001008993. The next prime is 19001009017. The reversal of 19001009002 is 20090010091.

It is a super-2 number, since 2×19001009002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966127 + ... + 985597.

It is an arithmetic number, because the mean of its divisors is an integer number (1799446464).

Almost surely, 2^19001009002 is an apocalyptic number.

19001009002 is a deficient number, since it is larger than the sum of its proper divisors (9790134422).

19001009002 is a wasteful number, since it uses less digits than its factorization.

19001009002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24405.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 19001009002 its reverse (20090010091), we get a palindrome (39091019093).

The spelling of 19001009002 in words is "nineteen billion, one million, nine thousand, two".