2781725473 has 8 divisors (see below), whose sum is σ = 2801554560. Its totient is φ = 2761915200.

The previous prime is 2781725467. The next prime is 2781725491. The reversal of 2781725473 is 3745271872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2781725473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2781725423) 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, 434268 + ... + 440626.

It is an arithmetic number, because the mean of its divisors is an integer number (350194320).

Almost surely, 2^2781725473 is an apocalyptic number.

It is an amenable number.

2781725473 is a deficient number, since it is larger than the sum of its proper divisors (19829087).

2781725473 is a wasteful number, since it uses less digits than its factorization.

2781725473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9407.

The product of its digits is 658560, while the sum is 46.

The square root of 2781725473 is about 52742.0654980443. The cubic root of 2781725473 is about 1406.3867166424.

The spelling of 2781725473 in words is "two billion, seven hundred eighty-one million, seven hundred twenty-five thousand, four hundred seventy-three".