2000438602021 has 4 divisors (see below), whose sum is σ = 2069419243500. Its totient is φ = 1931457960544.

The previous prime is 2000438602007. The next prime is 2000438602037. The reversal of 2000438602021 is 1202068340002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 853314062500 + 1147124539521 = 923750^2 + 1071039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000438602021 - 2²⁷ = 2000304384293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000438602321) 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, 34490320696 + ... + 34490320753.

It is an arithmetic number, because the mean of its divisors is an integer number (517354810875).

Almost surely, 2^{2000438602021} is an apocalyptic number.

It is an amenable number.

2000438602021 is a deficient number, since it is larger than the sum of its proper divisors (68980641479).

2000438602021 is an equidigital number, since it uses as much as digits as its factorization.

2000438602021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68980641478.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 2000438602021 in words is "two trillion, four hundred thirty-eight million, six hundred two thousand, twenty-one".