19899367002 has 12 divisors (see below), whose sum is σ = 43115295210. Its totient is φ = 6633122328.

The previous prime is 19899366997. The next prime is 19899367043. The reversal of 19899367002 is 20076399891.

19899367002 is a `hidden beast` number, since 198 + 99 + 367 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19596920121 + 302446881 = 139989^2 + 17391^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19899367002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552760177 + ... + 552760212.

Almost surely, 2^19899367002 is an apocalyptic number.

19899367002 is an abundant number, since it is smaller than the sum of its proper divisors (23215928208).

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

19899367002 is a wasteful number, since it uses less digits than its factorization.

19899367002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105520397 (or 1105520394 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 19899367002 in words is "nineteen billion, eight hundred ninety-nine million, three hundred sixty-seven thousand, two".