13563156672479 has 4 divisors (see below), whose sum is σ = 13563218867976. Its totient is φ = 13563094476984.

The previous prime is 13563156672449. The next prime is 13563156672509. The reversal of 13563156672479 is 97427665136531.

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

It is an interprime number because it is at equal distance from previous prime (13563156672449) and next prime (13563156672509).

It is a cyclic number.

It is not a de Polignac number, because 13563156672479 - 2³² = 13558861705183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13563156672449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30769484 + ... + 31207169.

It is an arithmetic number, because the mean of its divisors is an integer number (3390804716994).

Almost surely, 2^{13563156672479} is an apocalyptic number.

13563156672479 is a deficient number, since it is larger than the sum of its proper divisors (62195497).

13563156672479 is an equidigital number, since it uses as much as digits as its factorization.

13563156672479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62195496.

The product of its digits is 171460800, while the sum is 65.

The spelling of 13563156672479 in words is "thirteen trillion, five hundred sixty-three billion, one hundred fifty-six million, six hundred seventy-two thousand, four hundred seventy-nine".