12651541363 has 4 divisors (see below), whose sum is σ = 13087801440. Its totient is φ = 12215281288.

The previous prime is 12651541327. The next prime is 12651541367. The reversal of 12651541363 is 36314515621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12651541363 - 2³³ = 4061606771 is a prime.

It is a super-2 number, since 2×12651541363² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12651541367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218129995 + ... + 218130052.

It is an arithmetic number, because the mean of its divisors is an integer number (3271950360).

Almost surely, 2^12651541363 is an apocalyptic number.

12651541363 is a deficient number, since it is larger than the sum of its proper divisors (436260077).

12651541363 is an equidigital number, since it uses as much as digits as its factorization.

12651541363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436260076.

The product of its digits is 64800, while the sum is 37.

The spelling of 12651541363 in words is "twelve billion, six hundred fifty-one million, five hundred forty-one thousand, three hundred sixty-three".