2721859045 has 8 divisors (see below), whose sum is σ = 3296757024. Its totient is φ = 2157136464.

The previous prime is 2721859013. The next prime is 2721859057. The reversal of 2721859045 is 5409581272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2721859045 - 2⁵ = 2721859013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2721858992 and 2721859010.

It is a congruent 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, 2543259 + ... + 2544328.

It is an arithmetic number, because the mean of its divisors is an integer number (412094628).

Almost surely, 2^2721859045 is an apocalyptic number.

It is an amenable number.

2721859045 is a deficient number, since it is larger than the sum of its proper divisors (574897979).

2721859045 is a wasteful number, since it uses less digits than its factorization.

2721859045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087699.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 2721859045 is about 52171.4389776629. The cubic root of 2721859045 is about 1396.2243581366.

The spelling of 2721859045 in words is "two billion, seven hundred twenty-one million, eight hundred fifty-nine thousand, forty-five".