2783061728 has 12 divisors (see below), whose sum is σ = 5479152840. Its totient is φ = 1391530848.

The previous prime is 2783061719. The next prime is 2783061731. The reversal of 2783061728 is 8271603872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43485308 + ... + 43485371.

It is an arithmetic number, because the mean of its divisors is an integer number (456596070).

Almost surely, 2^2783061728 is an apocalyptic number.

It is an amenable number.

2783061728 is a deficient number, since it is larger than the sum of its proper divisors (2696091112).

2783061728 is an equidigital number, since it uses as much as digits as its factorization.

2783061728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86970689 (or 86970681 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 2783061728 is about 52754.7318067299. The cubic root of 2783061728 is about 1406.6118755066.

The spelling of 2783061728 in words is "two billion, seven hundred eighty-three million, sixty-one thousand, seven hundred twenty-eight".