2787728674 has 8 divisors (see below), whose sum is σ = 4222995228. Its totient is φ = 1380063600.

The previous prime is 2787728651. The next prime is 2787728677. The reversal of 2787728674 is 4768277872.

It can be written as a sum of positive squares in 2 ways, for example, as 2784145225 + 3583449 = 52765^2 + 1893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2787728677) 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, 6900117 + ... + 6900520.

Almost surely, 2^2787728674 is an apocalyptic number.

2787728674 is a deficient number, since it is larger than the sum of its proper divisors (1435266554).

2787728674 is a wasteful number, since it uses less digits than its factorization.

2787728674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800740.

The product of its digits is 14751744, while the sum is 58.

The square root of 2787728674 is about 52798.9457659904. The cubic root of 2787728674 is about 1407.3976905928.

The spelling of 2787728674 in words is "two billion, seven hundred eighty-seven million, seven hundred twenty-eight thousand, six hundred seventy-four".