12687550363 has 2 divisors, whose sum is σ = 12687550364. Its totient is φ = 12687550362.

The previous prime is 12687550361. The next prime is 12687550367. The reversal of 12687550363 is 36305578621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12687550363 - 2¹ = 12687550361 is a prime.

It is a super-2 number, since 2×12687550363² (a number of 21 digits) contains 22 as substring.

Together with 12687550361, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12687550361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6343775181 + 6343775182.

It is an arithmetic number, because the mean of its divisors is an integer number (6343775182).

Almost surely, 2^12687550363 is an apocalyptic number.

12687550363 is a deficient number, since it is larger than the sum of its proper divisors (1).

12687550363 is an equidigital number, since it uses as much as digits as its factorization.

12687550363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 12687550363 in words is "twelve billion, six hundred eighty-seven million, five hundred fifty thousand, three hundred sixty-three".