27100521073 has 2 divisors, whose sum is σ = 27100521074. Its totient is φ = 27100521072.

The previous prime is 27100521043. The next prime is 27100521089. The reversal of 27100521073 is 37012500172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26168562289 + 931958784 = 161767^2 + 30528^2 .

It is a cyclic number.

It is not a de Polignac number, because 27100521073 - 2²⁹ = 26563650161 is a prime.

It is not a weakly prime, because it can be changed into another prime (27100521043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13550260536 + 13550260537.

It is an arithmetic number, because the mean of its divisors is an integer number (13550260537).

Almost surely, 2^27100521073 is an apocalyptic number.

It is an amenable number.

27100521073 is a deficient number, since it is larger than the sum of its proper divisors (1).

27100521073 is an equidigital number, since it uses as much as digits as its factorization.

27100521073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The spelling of 27100521073 in words is "twenty-seven billion, one hundred million, five hundred twenty-one thousand, seventy-three".