1002009290920 has 96 divisors (see below), whose sum is σ = 2483162710560. Its totient is φ = 363624060800.

The previous prime is 1002009290903. The next prime is 1002009290941. The reversal of 1002009290920 is 290929002001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2165619 + ... + 2587261.

It is an arithmetic number, because the mean of its divisors is an integer number (25866278235).

Almost surely, 2^{1002009290920} is an apocalyptic number.

1002009290920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002009290920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241581355280).

1002009290920 is an abundant number, since it is smaller than the sum of its proper divisors (1481153419640).

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

1002009290920 is a wasteful number, since it uses less digits than its factorization.

1002009290920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422167 (or 422152 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 1002009290920 in words is "one trillion, two billion, nine million, two hundred ninety thousand, nine hundred twenty".