27774304840 has 16 divisors (see below), whose sum is σ = 62492185980. Its totient is φ = 11109721920.

The previous prime is 27774304837. The next prime is 27774304867. The reversal of 27774304840 is 4840347772.

It can be written as a sum of positive squares in 2 ways, for example, as 27369731844 + 404572996 = 165438^2 + 20114^2 .

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 3 ways as a sum of consecutive naturals, for example, 347178771 + ... + 347178850.

Almost surely, 2^27774304840 is an apocalyptic number.

27774304840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27774304840 is an abundant number, since it is smaller than the sum of its proper divisors (34717881140).

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

27774304840 is a wasteful number, since it uses less digits than its factorization.

27774304840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694357632 (or 694357628 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 27774304840 in words is "twenty-seven billion, seven hundred seventy-four million, three hundred four thousand, eight hundred forty".