1009192002002 has 16 divisors (see below), whose sum is σ = 1519727299992. Its totient is φ = 502617373440.

The previous prime is 1009192002001. The next prime is 1009192002023. The reversal of 1009192002002 is 2002002919001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1007194895281 + 1997106721 = 1003591^2 + 44689^2 .

It is not an unprimeable number, because it can be changed into a prime (1009192002001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501658 + ... + 2067210.

Almost surely, 2^{1009192002002} is an apocalyptic number.

1009192002002 is a deficient number, since it is larger than the sum of its proper divisors (510535297990).

1009192002002 is a wasteful number, since it uses less digits than its factorization.

1009192002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569053.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 1009192002002 in words is "one trillion, nine billion, one hundred ninety-two million, two thousand, two".