27780444970 has 16 divisors (see below), whose sum is σ = 50015333088. Its totient is φ = 11109837520.

The previous prime is 27780444917. The next prime is 27780444973. The reversal of 27780444970 is 7944408772.

It is not an unprimeable number, because it can be changed into a prime (27780444973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242296 + ... + 338035.

It is an arithmetic number, because the mean of its divisors is an integer number (3125958318).

Almost surely, 2^27780444970 is an apocalyptic number.

27780444970 is a deficient number, since it is larger than the sum of its proper divisors (22234888118).

27780444970 is a wasteful number, since it uses less digits than its factorization.

27780444970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585125.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 27780444970 in words is "twenty-seven billion, seven hundred eighty million, four hundred forty-four thousand, nine hundred seventy".