1002279868209 has 12 divisors (see below), whose sum is σ = 1523934302800. Its totient is φ = 633018864024.

The previous prime is 1002279868201. The next prime is 1002279868231. The reversal of 1002279868209 is 9028689722001.

1002279868209 is a `hidden beast` number, since 100 + 2 + 279 + 8 + 68 + 209 = 666.

It is not a de Polignac number, because 1002279868209 - 2³ = 1002279868201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1002279868201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2930642719 + ... + 2930643060.

Almost surely, 2^{1002279868209} is an apocalyptic number.

1002279868209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1002279868209 is a deficient number, since it is larger than the sum of its proper divisors (521654434591).

1002279868209 is a wasteful number, since it uses less digits than its factorization.

1002279868209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861285804 (or 5861285801 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 1002279868209 in words is "one trillion, two billion, two hundred seventy-nine million, eight hundred sixty-eight thousand, two hundred nine".