27123619087 has 2 divisors, whose sum is σ = 27123619088. Its totient is φ = 27123619086.

The previous prime is 27123619067. The next prime is 27123619097. The reversal of 27123619087 is 78091632172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27123619087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27123619067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13561809543 + 13561809544.

It is an arithmetic number, because the mean of its divisors is an integer number (13561809544).

Almost surely, 2^27123619087 is an apocalyptic number.

27123619087 is a deficient number, since it is larger than the sum of its proper divisors (1).

27123619087 is an equidigital number, since it uses as much as digits as its factorization.

27123619087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 27123619087 in words is "twenty-seven billion, one hundred twenty-three million, six hundred nineteen thousand, eighty-seven".