27805052780 has 48 divisors (see below), whose sum is σ = 61851535200. Its totient is φ = 10463351808.

The previous prime is 27805052777. The next prime is 27805052801. The reversal of 27805052780 is 8725050872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850619 + ... + 882701.

It is an arithmetic number, because the mean of its divisors is an integer number (1288573650).

Almost surely, 2^27805052780 is an apocalyptic number.

27805052780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27805052780 is an abundant number, since it is smaller than the sum of its proper divisors (34046482420).

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

27805052780 is a wasteful number, since it uses less digits than its factorization.

27805052780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34658 (or 34656 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 27805052780 in words is "twenty-seven billion, eight hundred five million, fifty-two thousand, seven hundred eighty".