2021547713860 has 48 divisors (see below), whose sum is σ = 4261498375680. Its totient is φ = 805525015680.

The previous prime is 2021547713797. The next prime is 2021547713869. The reversal of 2021547713860 is 683177451202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021547713860.

It is not an unprimeable number, because it can be changed into a prime (2021547713869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47886282 + ... + 47928478.

It is an arithmetic number, because the mean of its divisors is an integer number (88781216160).

Almost surely, 2^{2021547713860} is an apocalyptic number.

2021547713860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021547713860 is an abundant number, since it is smaller than the sum of its proper divisors (2239950661820).

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

2021547713860 is a wasteful number, since it uses less digits than its factorization.

2021547713860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51316 (or 51314 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 2021547713860 in words is "two trillion, twenty-one billion, five hundred forty-seven million, seven hundred thirteen thousand, eight hundred sixty".