12531554504345 has 8 divisors (see below), whose sum is σ = 15046280561664. Its totient is φ = 10019633499184.

The previous prime is 12531554504341. The next prime is 12531554504363. The reversal of 12531554504345 is 54340545513521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12531554504345 - 2² = 12531554504341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12531554504345.

It is not an unprimeable number, because it can be changed into a prime (12531554504341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701253209 + ... + 701271078.

It is an arithmetic number, because the mean of its divisors is an integer number (1880785070208).

Almost surely, 2^{12531554504345} is an apocalyptic number.

It is an amenable number.

12531554504345 is a deficient number, since it is larger than the sum of its proper divisors (2514726057319).

12531554504345 is a wasteful number, since it uses less digits than its factorization.

12531554504345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402526079.

The product of its (nonzero) digits is 3600000, while the sum is 47.

The spelling of 12531554504345 in words is "twelve trillion, five hundred thirty-one billion, five hundred fifty-four million, five hundred four thousand, three hundred forty-five".