2021319380736 has 108 divisors (see below), whose sum is σ = 6043812719672. Its totient is φ = 673773106176.

The previous prime is 2021319380713. The next prime is 2021319380749. The reversal of 2021319380736 is 6370839131202.

2021319380736 is a `hidden beast` number, since 20 + 213 + 1 + 9 + 380 + 7 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a junction number, because it is equal to n+sod(n) for n = 2021319380691 and 2021319380700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16184251 + ... + 16308666.

Almost surely, 2^{2021319380736} is an apocalyptic number.

It is an amenable number.

2021319380736 is an abundant number, since it is smaller than the sum of its proper divisors (4022493338936).

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

2021319380736 is an frugal number, since it uses more digits than its factorization.

2021319380736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32492948 (or 32492922 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 2021319380736 in words is "two trillion, twenty-one billion, three hundred nineteen million, three hundred eighty thousand, seven hundred thirty-six".