2605857860836 has 24 divisors (see below), whose sum is σ = 4653885594176. Its totient is φ = 1276391144160.

The previous prime is 2605857860819. The next prime is 2605857860863. The reversal of 2605857860836 is 6380687585062.

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, 26811576 + ... + 26908591.

Almost surely, 2^{2605857860836} is an apocalyptic number.

It is an amenable number.

2605857860836 is a deficient number, since it is larger than the sum of its proper divisors (2048027733340).

2605857860836 is a wasteful number, since it uses less digits than its factorization.

2605857860836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53720419 (or 53720417 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 2605857860836 in words is "two trillion, six hundred five billion, eight hundred fifty-seven million, eight hundred sixty thousand, eight hundred thirty-six".