2721580084243 has 4 divisors (see below), whose sum is σ = 2723562299808. Its totient is φ = 2719597868680.

The previous prime is 2721580084211. The next prime is 2721580084253. The reversal of 2721580084243 is 3424800851272.

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

It is a cyclic number.

It is not a de Polignac number, because 2721580084243 - 2⁵ = 2721580084211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2721580084193 and 2721580084202.

It is not an unprimeable number, because it can be changed into a prime (2721580084253) 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, 991105723 + ... + 991108468.

It is an arithmetic number, because the mean of its divisors is an integer number (680890574952).

Almost surely, 2^{2721580084243} is an apocalyptic number.

2721580084243 is a deficient number, since it is larger than the sum of its proper divisors (1982215565).

2721580084243 is a wasteful number, since it uses less digits than its factorization.

2721580084243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982215564.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 2721580084243 in words is "two trillion, seven hundred twenty-one billion, five hundred eighty million, eighty-four thousand, two hundred forty-three".