2686742956 has 24 divisors (see below), whose sum is σ = 5069982960. Its totient is φ = 1241625600.

The previous prime is 2686742911. The next prime is 2686742977. The reversal of 2686742956 is 6592476862.

It is a junction number, because it is equal to n+sod(n) for n = 2686742897 and 2686742906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428005 + ... + 434236.

It is an arithmetic number, because the mean of its divisors is an integer number (211249290).

Almost surely, 2^2686742956 is an apocalyptic number.

It is an amenable number.

2686742956 is a deficient number, since it is larger than the sum of its proper divisors (2383240004).

2686742956 is a wasteful number, since it uses less digits than its factorization.

2686742956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862305 (or 862303 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The square root of 2686742956 is about 51833.8012883485. The cubic root of 2686742956 is about 1390.1938821733.

The spelling of 2686742956 in words is "two billion, six hundred eighty-six million, seven hundred forty-two thousand, nine hundred fifty-six".