27128628275 has 36 divisors (see below), whose sum is σ = 39265736832. Its totient is φ = 18538752960.

The previous prime is 27128628257. The next prime is 27128628299. The reversal of 27128628275 is 57282682172.

It is not a de Polignac number, because 27128628275 - 2⁸ = 27128628019 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 321134 + ... + 396716.

It is an arithmetic number, because the mean of its divisors is an integer number (1090714912).

Almost surely, 2^27128628275 is an apocalyptic number.

27128628275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27128628275 is a deficient number, since it is larger than the sum of its proper divisors (12137108557).

27128628275 is a wasteful number, since it uses less digits than its factorization.

27128628275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75900 (or 75888 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The spelling of 27128628275 in words is "twenty-seven billion, one hundred twenty-eight million, six hundred twenty-eight thousand, two hundred seventy-five".