12907818527 has 2 divisors, whose sum is σ = 12907818528. Its totient is φ = 12907818526.

The previous prime is 12907818479. The next prime is 12907818529. The reversal of 12907818527 is 72581870921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12907818527 - 2¹² = 12907814431 is a prime.

It is a super-2 number, since 2×12907818527² (a number of 21 digits) contains 22 as substring.

Together with 12907818529, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12907818529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6453909263 + 6453909264.

It is an arithmetic number, because the mean of its divisors is an integer number (6453909264).

Almost surely, 2^12907818527 is an apocalyptic number.

12907818527 is a deficient number, since it is larger than the sum of its proper divisors (1).

12907818527 is an equidigital number, since it uses as much as digits as its factorization.

12907818527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 12907818527 in words is "twelve billion, nine hundred seven million, eight hundred eighteen thousand, five hundred twenty-seven".