27525278028 has 12 divisors (see below), whose sum is σ = 64225648760. Its totient is φ = 9175092672.

The previous prime is 27525278009. The next prime is 27525278047. The reversal of 27525278028 is 82087252572.

It is an interprime number because it is at equal distance from previous prime (27525278009) and next prime (27525278047).

It is a tau number, because it is divible by the number of its divisors (12).

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, 1146886573 + ... + 1146886596.

Almost surely, 2^27525278028 is an apocalyptic number.

It is an amenable number.

27525278028 is an abundant number, since it is smaller than the sum of its proper divisors (36700370732).

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

27525278028 is a wasteful number, since it uses less digits than its factorization.

27525278028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293773176 (or 2293773174 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 27525278028 in words is "twenty-seven billion, five hundred twenty-five million, two hundred seventy-eight thousand, twenty-eight".