10002020001989 has 8 divisors (see below), whose sum is σ = 10053508088448. Its totient is φ = 9950539152400.

The previous prime is 10002020001977. The next prime is 10002020002031. The reversal of 10002020001989 is 98910002020001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10002020001989 - 2²⁰ = 10002018953413 is a prime.

It is a super-2 number, since 2×10002020001989² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002020001089) 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, 973064 + ... + 4577214.

It is an arithmetic number, because the mean of its divisors is an integer number (1256688511056).

Almost surely, 2^{10002020001989} is an apocalyptic number.

It is an amenable number.

10002020001989 is a deficient number, since it is larger than the sum of its proper divisors (51488086459).

10002020001989 is a wasteful number, since it uses less digits than its factorization.

10002020001989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618435.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 10002020001989 in words is "ten trillion, two billion, twenty million, one thousand, nine hundred eighty-nine".