27028500451 has 2 divisors, whose sum is σ = 27028500452. Its totient is φ = 27028500450.

The previous prime is 27028500449. The next prime is 27028500467. The reversal of 27028500451 is 15400582072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27028500451 - 2¹ = 27028500449 is a prime.

Together with 27028500449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27028500491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13514250225 + 13514250226.

It is an arithmetic number, because the mean of its divisors is an integer number (13514250226).

Almost surely, 2^27028500451 is an apocalyptic number.

27028500451 is a deficient number, since it is larger than the sum of its proper divisors (1).

27028500451 is an equidigital number, since it uses as much as digits as its factorization.

27028500451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The spelling of 27028500451 in words is "twenty-seven billion, twenty-eight million, five hundred thousand, four hundred fifty-one".