1002002219979 has 16 divisors (see below), whose sum is σ = 1360911731712. Its totient is φ = 655661881728.

The previous prime is 1002002219963. The next prime is 1002002220007. The reversal of 1002002219979 is 9799122002001.

It is not a de Polignac number, because 1002002219979 - 2⁴ = 1002002219963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002002219979.

It is not an unprimeable number, because it can be changed into a prime (1002002219579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14313427 + ... + 14383260.

It is an arithmetic number, because the mean of its divisors is an integer number (85056983232).

Almost surely, 2^{1002002219979} is an apocalyptic number.

1002002219979 is a deficient number, since it is larger than the sum of its proper divisors (358909511733).

1002002219979 is a wasteful number, since it uses less digits than its factorization.

1002002219979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28696906.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 1002002219979 in words is "one trillion, two billion, two million, two hundred nineteen thousand, nine hundred seventy-nine".