27870814123 has 2 divisors, whose sum is σ = 27870814124. Its totient is φ = 27870814122.

The previous prime is 27870814099. The next prime is 27870814129. The reversal of 27870814123 is 32141807872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27870814123 - 2¹³ = 27870805931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27870814123.

It is not a weakly prime, because it can be changed into another prime (27870814129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13935407061 + 13935407062.

It is an arithmetic number, because the mean of its divisors is an integer number (13935407062).

Almost surely, 2^27870814123 is an apocalyptic number.

27870814123 is a deficient number, since it is larger than the sum of its proper divisors (1).

27870814123 is an equidigital number, since it uses as much as digits as its factorization.

27870814123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 27870814123 in words is "twenty-seven billion, eight hundred seventy million, eight hundred fourteen thousand, one hundred twenty-three".