20210009984 has 64 divisors (see below), whose sum is σ = 43842762000. Its totient is φ = 9243021312.

The previous prime is 20210009983. The next prime is 20210010053. The reversal of 20210009984 is 48990001202.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210009983) 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, 72749 + ... + 213804.

Almost surely, 2^20210009984 is an apocalyptic number.

It is an amenable number.

20210009984 is an abundant number, since it is smaller than the sum of its proper divisors (23632752016).

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

20210009984 is a wasteful number, since it uses less digits than its factorization.

20210009984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286615 (or 286603 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 20210009984 in words is "twenty billion, two hundred ten million, nine thousand, nine hundred eighty-four".