2680431784 has 16 divisors (see below), whose sum is σ = 5028949620. Its totient is φ = 1339378560.

The previous prime is 2680431781. The next prime is 2680431791. The reversal of 2680431784 is 4871340862.

It can be written as a sum of positive squares in 2 ways, for example, as 2618368900 + 62062884 = 51170^2 + 7878^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2680431784.

It is not an unprimeable number, because it can be changed into a prime (2680431781) 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, 90957 + ... + 116764.

Almost surely, 2^2680431784 is an apocalyptic number.

It is an amenable number.

2680431784 is a deficient number, since it is larger than the sum of its proper divisors (2348517836).

2680431784 is a wasteful number, since it uses less digits than its factorization.

2680431784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209340 (or 209336 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 2680431784 is about 51772.8865720273. The cubic root of 2680431784 is about 1389.1045047265.

The spelling of 2680431784 in words is "two billion, six hundred eighty million, four hundred thirty-one thousand, seven hundred eighty-four".