27507403423 has 2 divisors, whose sum is σ = 27507403424. Its totient is φ = 27507403422.

The previous prime is 27507403421. The next prime is 27507403447. The reversal of 27507403423 is 32430470572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27507403423 - 2¹ = 27507403421 is a prime.

Together with 27507403421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27507403421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13753701711 + 13753701712.

It is an arithmetic number, because the mean of its divisors is an integer number (13753701712).

Almost surely, 2^27507403423 is an apocalyptic number.

27507403423 is a deficient number, since it is larger than the sum of its proper divisors (1).

27507403423 is an equidigital number, since it uses as much as digits as its factorization.

27507403423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 37.

Adding to 27507403423 its reverse (32430470572), we get a palindrome (59937873995).

The spelling of 27507403423 in words is "twenty-seven billion, five hundred seven million, four hundred three thousand, four hundred twenty-three".