2782725889 has 4 divisors (see below), whose sum is σ = 2787054256. Its totient is φ = 2778397524.

The previous prime is 2782725871. The next prime is 2782725947. The reversal of 2782725889 is 9885272872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2782725889 - 2⁷ = 2782725761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2782725809) 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, 2163219 + ... + 2164504.

It is an arithmetic number, because the mean of its divisors is an integer number (696763564).

Almost surely, 2^2782725889 is an apocalyptic number.

It is an amenable number.

2782725889 is a deficient number, since it is larger than the sum of its proper divisors (4328367).

2782725889 is an equidigital number, since it uses as much as digits as its factorization.

2782725889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328366.

The product of its digits is 9031680, while the sum is 58.

The square root of 2782725889 is about 52751.5486881665. The cubic root of 2782725889 is about 1406.5552934428. Note that the first 3 decimals are identical.

The spelling of 2782725889 in words is "two billion, seven hundred eighty-two million, seven hundred twenty-five thousand, eight hundred eighty-nine".