2681835640556 has 12 divisors (see below), whose sum is σ = 4712686282920. Its totient is φ = 1335353845440.

The previous prime is 2681835640529. The next prime is 2681835640571. The reversal of 2681835640556 is 6550465381862.

It is a junction number, because it is equal to n+sod(n) for n = 2681835640495 and 2681835640504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390992626 + ... + 1390994553.

It is an arithmetic number, because the mean of its divisors is an integer number (392723856910).

Almost surely, 2^{2681835640556} is an apocalyptic number.

It is an amenable number.

2681835640556 is a deficient number, since it is larger than the sum of its proper divisors (2030850642364).

2681835640556 is a wasteful number, since it uses less digits than its factorization.

2681835640556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781987424 (or 2781987422 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 59.

The spelling of 2681835640556 in words is "two trillion, six hundred eighty-one billion, eight hundred thirty-five million, six hundred forty thousand, five hundred fifty-six".