2787979825156 has 12 divisors (see below), whose sum is σ = 4878991100368. Its totient is φ = 1393982367912.

The previous prime is 2787979825153. The next prime is 2787979825181. The reversal of 2787979825156 is 6515289797872.

It is not an unprimeable number, because it can be changed into a prime (2787979825153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009446 + ... + 2568061.

Almost surely, 2^{2787979825156} is an apocalyptic number.

It is an amenable number.

2787979825156 is a deficient number, since it is larger than the sum of its proper divisors (2091011275212).

2787979825156 is a wasteful number, since it uses less digits than its factorization.

2787979825156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772338 (or 3772336 counting only the distinct ones).

The product of its digits is 1066867200, while the sum is 76.

The spelling of 2787979825156 in words is "two trillion, seven hundred eighty-seven billion, nine hundred seventy-nine million, eight hundred twenty-five thousand, one hundred fifty-six".