27680422901 has 2 divisors, whose sum is σ = 27680422902. Its totient is φ = 27680422900.

The previous prime is 27680422879. The next prime is 27680422921. The reversal of 27680422901 is 10922408672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24804675025 + 2875747876 = 157495^2 + 53626^2 .

It is a cyclic number.

It is not a de Polignac number, because 27680422901 - 2¹⁸ = 27680160757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27680422921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13840211450 + 13840211451.

It is an arithmetic number, because the mean of its divisors is an integer number (13840211451).

Almost surely, 2^27680422901 is an apocalyptic number.

It is an amenable number.

27680422901 is a deficient number, since it is larger than the sum of its proper divisors (1).

27680422901 is an equidigital number, since it uses as much as digits as its factorization.

27680422901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 27680422901 in words is "twenty-seven billion, six hundred eighty million, four hundred twenty-two thousand, nine hundred one".