27934498121 has 2 divisors, whose sum is σ = 27934498122. Its totient is φ = 27934498120.

The previous prime is 27934498099. The next prime is 27934498127. The reversal of 27934498121 is 12189443972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20783258896 + 7151239225 = 144164^2 + 84565^2 .

It is a cyclic number.

It is not a de Polignac number, because 27934498121 - 2¹⁴ = 27934481737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27934498121.

It is not a weakly prime, because it can be changed into another prime (27934498127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13967249060 + 13967249061.

It is an arithmetic number, because the mean of its divisors is an integer number (13967249061).

Almost surely, 2^27934498121 is an apocalyptic number.

It is an amenable number.

27934498121 is a deficient number, since it is larger than the sum of its proper divisors (1).

27934498121 is an equidigital number, since it uses as much as digits as its factorization.

27934498121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The spelling of 27934498121 in words is "twenty-seven billion, nine hundred thirty-four million, four hundred ninety-eight thousand, one hundred twenty-one".