2808748578779 has 16 divisors (see below), whose sum is σ = 3300483884544. Its totient is φ = 2356495140000.

The previous prime is 2808748578767. The next prime is 2808748578781. The reversal of 2808748578779 is 9778758478082.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2808748578779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2808748578709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387709 + ... + 2746494.

It is an arithmetic number, because the mean of its divisors is an integer number (206280242784).

Almost surely, 2^{2808748578779} is an apocalyptic number.

2808748578779 is a deficient number, since it is larger than the sum of its proper divisors (491735305765).

2808748578779 is a wasteful number, since it uses less digits than its factorization.

2808748578779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138978.

The product of its (nonzero) digits is 3540418560, while the sum is 80.

The spelling of 2808748578779 in words is "two trillion, eight hundred eight billion, seven hundred forty-eight million, five hundred seventy-eight thousand, seven hundred seventy-nine".