1990992982001 has 4 divisors (see below), whose sum is σ = 1990997889600. Its totient is φ = 1990988074404.

The previous prime is 1990992981983. The next prime is 1990992982021. The reversal of 1990992982001 is 1002892990991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1990992982001 - 2⁶ = 1990992981937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1990992982021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784381 + ... + 2676938.

It is an arithmetic number, because the mean of its divisors is an integer number (497749472400).

Almost surely, 2^{1990992982001} is an apocalyptic number.

It is an amenable number.

1990992982001 is a deficient number, since it is larger than the sum of its proper divisors (4907599).

1990992982001 is an equidigital number, since it uses as much as digits as its factorization.

1990992982001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907598.

The product of its (nonzero) digits is 1889568, while the sum is 59.

The spelling of 1990992982001 in words is "one trillion, nine hundred ninety billion, nine hundred ninety-two million, nine hundred eighty-two thousand, one".