27770000072 has 32 divisors (see below), whose sum is σ = 55277186400. Its totient is φ = 13033730304.

The previous prime is 27770000051. The next prime is 27770000081. The reversal of 27770000072 is 27000007772.

It is a junction number, because it is equal to n+sod(n) for n = 27769999993 and 27770000038.

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 7 ways as a sum of consecutive naturals, for example, 217838 + ... + 320925.

It is an arithmetic number, because the mean of its divisors is an integer number (1727412075).

Almost surely, 2^27770000072 is an apocalyptic number.

It is an amenable number.

27770000072 is a deficient number, since it is larger than the sum of its proper divisors (27507186328).

27770000072 is a wasteful number, since it uses less digits than its factorization.

27770000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539165 (or 539161 counting only the distinct ones).

The product of its (nonzero) digits is 9604, while the sum is 32.

The spelling of 27770000072 in words is "twenty-seven billion, seven hundred seventy million, seventy-two", and thus it is an aban number.