27121059673 has 2 divisors, whose sum is σ = 27121059674. Its totient is φ = 27121059672.

The previous prime is 27121059613. The next prime is 27121059859. The reversal of 27121059673 is 37695012172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17633715264 + 9487344409 = 132792^2 + 97403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27121059673 is a prime.

It is not a weakly prime, because it can be changed into another prime (27121059613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13560529836 + 13560529837.

It is an arithmetic number, because the mean of its divisors is an integer number (13560529837).

Almost surely, 2^27121059673 is an apocalyptic number.

It is an amenable number.

27121059673 is a deficient number, since it is larger than the sum of its proper divisors (1).

27121059673 is an equidigital number, since it uses as much as digits as its factorization.

27121059673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 27121059673 in words is "twenty-seven billion, one hundred twenty-one million, fifty-nine thousand, six hundred seventy-three".