12578816463 has 16 divisors (see below), whose sum is σ = 17428992000. Its totient is φ = 8060891040.

The previous prime is 12578816431. The next prime is 12578816489. The reversal of 12578816463 is 36461887521.

It is not a de Polignac number, because 12578816463 - 2⁵ = 12578816431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12578816423) 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, 440023 + ... + 467736.

It is an arithmetic number, because the mean of its divisors is an integer number (1089312000).

Almost surely, 2^12578816463 is an apocalyptic number.

12578816463 is a deficient number, since it is larger than the sum of its proper divisors (4850175537).

12578816463 is a wasteful number, since it uses less digits than its factorization.

12578816463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907942.

The product of its digits is 1935360, while the sum is 51.

The spelling of 12578816463 in words is "twelve billion, five hundred seventy-eight million, eight hundred sixteen thousand, four hundred sixty-three".