12585173540451 has 16 divisors (see below), whose sum is σ = 16810507736064. Its totient is φ = 8374989078944.

The previous prime is 12585173540437. The next prime is 12585173540473. The reversal of 12585173540451 is 15404537158521.

It is a cyclic number.

It is not a de Polignac number, because 12585173540451 - 2²³ = 12585165151843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12585173540394 and 12585173540403.

It is not an unprimeable number, because it can be changed into a prime (12585173440451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2915140 + ... + 5802446.

It is an arithmetic number, because the mean of its divisors is an integer number (1050656733504).

Almost surely, 2^{12585173540451} is an apocalyptic number.

12585173540451 is a deficient number, since it is larger than the sum of its proper divisors (4225334195613).

12585173540451 is a wasteful number, since it uses less digits than its factorization.

12585173540451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889930.

The product of its (nonzero) digits is 3360000, while the sum is 51.

The spelling of 12585173540451 in words is "twelve trillion, five hundred eighty-five billion, one hundred seventy-three million, five hundred forty thousand, four hundred fifty-one".