2686787924 has 6 divisors (see below), whose sum is σ = 4701878874. Its totient is φ = 1343393960.

The previous prime is 2686787903. The next prime is 2686787927. The reversal of 2686787924 is 4297876862.

It can be written as a sum of positive squares in only one way, i.e., 2278343824 + 408444100 = 47732^2 + 20210^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686787927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335848487 + ... + 335848494.

It is an arithmetic number, because the mean of its divisors is an integer number (783646479).

Almost surely, 2^2686787924 is an apocalyptic number.

It is an amenable number.

2686787924 is a deficient number, since it is larger than the sum of its proper divisors (2015090950).

2686787924 is a wasteful number, since it uses less digits than its factorization.

2686787924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671696985 (or 671696983 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The square root of 2686787924 is about 51834.2350575370. The cubic root of 2686787924 is about 1390.2016380188.

The spelling of 2686787924 in words is "two billion, six hundred eighty-six million, seven hundred eighty-seven thousand, nine hundred twenty-four".