2787804025868 has 12 divisors (see below), whose sum is σ = 4878727221480. Its totient is φ = 1393881962592.

The previous prime is 2787804025843. The next prime is 2787804025871. The reversal of 2787804025868 is 8685204087872.

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, 4697546 + ... + 5257617.

It is an arithmetic number, because the mean of its divisors is an integer number (406560601790).

Almost surely, 2^{2787804025868} is an apocalyptic number.

It is an amenable number.

2787804025868 is a deficient number, since it is larger than the sum of its proper divisors (2090923195612).

2787804025868 is a wasteful number, since it uses less digits than its factorization.

2787804025868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025176 (or 10025174 counting only the distinct ones).

The product of its (nonzero) digits is 96337920, while the sum is 65.

The spelling of 2787804025868 in words is "two trillion, seven hundred eighty-seven billion, eight hundred four million, twenty-five thousand, eight hundred sixty-eight".