27808030755 has 128 divisors (see below), whose sum is σ = 53469020160. Its totient is φ = 13661706240.

The previous prime is 27808030753. The next prime is 27808030759. The reversal of 27808030755 is 55703080872.

It is not a de Polignac number, because 27808030755 - 2¹ = 27808030753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 27808030755.

It is not an unprimeable number, because it can be changed into a prime (27808030753) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25581822 + ... + 25582908.

It is an arithmetic number, because the mean of its divisors is an integer number (417726720).

Almost surely, 2^27808030755 is an apocalyptic number.

27808030755 is a deficient number, since it is larger than the sum of its proper divisors (25660989405).

27808030755 is a wasteful number, since it uses less digits than its factorization.

27808030755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 27808030755 in words is "twenty-seven billion, eight hundred eight million, thirty thousand, seven hundred fifty-five".