27122789072 has 20 divisors (see below), whose sum is σ = 52700988900. Its totient is φ = 13522533888.

The previous prime is 27122789069. The next prime is 27122789087. The reversal of 27122789072 is 27098722172.

It can be written as a sum of positive squares in 2 ways, for example, as 8685494416 + 18437294656 = 93196^2 + 135784^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2423033 + ... + 2434200.

It is an arithmetic number, because the mean of its divisors is an integer number (2635049445).

Almost surely, 2^27122789072 is an apocalyptic number.

It is an amenable number.

27122789072 is a deficient number, since it is larger than the sum of its proper divisors (25578199828).

27122789072 is a wasteful number, since it uses less digits than its factorization.

27122789072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857590 (or 4857584 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 27122789072 in words is "twenty-seven billion, one hundred twenty-two million, seven hundred eighty-nine thousand, seventy-two".