2000621861868 has 24 divisors (see below), whose sum is σ = 5334991631872. Its totient is φ = 571606246224.

The previous prime is 2000621861813. The next prime is 2000621861933. The reversal of 2000621861868 is 8681681260002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11908463380 + ... + 11908463547.

Almost surely, 2^{2000621861868} is an apocalyptic number.

2000621861868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2000621861868 is an abundant number, since it is smaller than the sum of its proper divisors (3334369770004).

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

2000621861868 is a wasteful number, since it uses less digits than its factorization.

2000621861868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23816926941 (or 23816926939 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 2000621861868 in words is "two trillion, six hundred twenty-one million, eight hundred sixty-one thousand, eight hundred sixty-eight".