27071240407 has 2 divisors, whose sum is σ = 27071240408. Its totient is φ = 27071240406.

The previous prime is 27071240381. The next prime is 27071240477. The reversal of 27071240407 is 70404217072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27071240407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27071240477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13535620203 + 13535620204.

It is an arithmetic number, because the mean of its divisors is an integer number (13535620204).

Almost surely, 2^27071240407 is an apocalyptic number.

27071240407 is a deficient number, since it is larger than the sum of its proper divisors (1).

27071240407 is an equidigital number, since it uses as much as digits as its factorization.

27071240407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 34.

Adding to 27071240407 its reverse (70404217072), we get a palindrome (97475457479).

The spelling of 27071240407 in words is "twenty-seven billion, seventy-one million, two hundred forty thousand, four hundred seven".