2777800000028 has 12 divisors (see below), whose sum is σ = 4861418210040. Its totient is φ = 1388823368592.

The previous prime is 2777800000009. The next prime is 2777800000037. The reversal of 2777800000028 is 8200000087772.

It is a congruent number.

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, 19076258 + ... + 19221321.

It is an arithmetic number, because the mean of its divisors is an integer number (405118184170).

Almost surely, 2^{2777800000028} is an apocalyptic number.

It is an amenable number.

2777800000028 is a deficient number, since it is larger than the sum of its proper divisors (2083618210012).

2777800000028 is a wasteful number, since it uses less digits than its factorization.

2777800000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38315716 (or 38315714 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 41.

The spelling of 2777800000028 in words is "two trillion, seven hundred seventy-seven billion, eight hundred million, twenty-eight", and thus it is an aban number.