27773145008 has 40 divisors (see below), whose sum is σ = 61519624992. Its totient is φ = 11898528768.

The previous prime is 27773144981. The next prime is 27773145031. The reversal of 27773145008 is 80054137772.

It is a self number, because there is not a number n which added to its sum of digits gives 27773145008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281666 + ... + 367262.

Almost surely, 2^27773145008 is an apocalyptic number.

27773145008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27773145008 is an abundant number, since it is smaller than the sum of its proper divisors (33746479984).

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

27773145008 is a wasteful number, since it uses less digits than its factorization.

27773145008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88509 (or 88503 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 27773145008 in words is "twenty-seven billion, seven hundred seventy-three million, one hundred forty-five thousand, eight".