12537751663 has 2 divisors, whose sum is σ = 12537751664. Its totient is φ = 12537751662.

The previous prime is 12537751657. The next prime is 12537751727. The reversal of 12537751663 is 36615773521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12537751663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12537757663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268875831 + 6268875832.

It is an arithmetic number, because the mean of its divisors is an integer number (6268875832).

Almost surely, 2^12537751663 is an apocalyptic number.

12537751663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537751663 is an equidigital number, since it uses as much as digits as its factorization.

12537751663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 46.

The spelling of 12537751663 in words is "twelve billion, five hundred thirty-seven million, seven hundred fifty-one thousand, six hundred sixty-three".