27058680421 has 2 divisors, whose sum is σ = 27058680422. Its totient is φ = 27058680420.

The previous prime is 27058680379. The next prime is 27058680449. The reversal of 27058680421 is 12408685072.

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., 24301380321 + 2757300100 = 155889^2 + 52510^2 .

It is a cyclic number.

It is not a de Polignac number, because 27058680421 - 2¹⁵ = 27058647653 is a prime.

It is a super-2 number, since 2×27058680421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27058680221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13529340210 + 13529340211.

It is an arithmetic number, because the mean of its divisors is an integer number (13529340211).

Almost surely, 2^27058680421 is an apocalyptic number.

It is an amenable number.

27058680421 is a deficient number, since it is larger than the sum of its proper divisors (1).

27058680421 is an equidigital number, since it uses as much as digits as its factorization.

27058680421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 27058680421 in words is "twenty-seven billion, fifty-eight million, six hundred eighty thousand, four hundred twenty-one".