27802575780 has 96 divisors (see below), whose sum is σ = 88992158976. Its totient is φ = 6353166336.

The previous prime is 27802575767. The next prime is 27802575817. The reversal of 27802575780 is 8757520872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2218492 + ... + 2230988.

It is an arithmetic number, because the mean of its divisors is an integer number (927001656).

Almost surely, 2^27802575780 is an apocalyptic number.

27802575780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27802575780 is an abundant number, since it is smaller than the sum of its proper divisors (61189583196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27802575780 is a wasteful number, since it uses less digits than its factorization.

27802575780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17813 (or 17811 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The spelling of 27802575780 in words is "twenty-seven billion, eight hundred two million, five hundred seventy-five thousand, seven hundred eighty".