12454534785 has 32 divisors (see below), whose sum is σ = 24844372992. Its totient is φ = 5175910080.

The previous prime is 12454534769. The next prime is 12454534801. The reversal of 12454534785 is 58743545421.

It is an interprime number because it is at equal distance from previous prime (12454534769) and next prime (12454534801).

It is not a de Polignac number, because 12454534785 - 2⁴ = 12454534769 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5390419 + ... + 5392728.

It is an arithmetic number, because the mean of its divisors is an integer number (776386656).

Almost surely, 2^12454534785 is an apocalyptic number.

12454534785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12454534785 is a deficient number, since it is larger than the sum of its proper divisors (12389838207).

12454534785 is a wasteful number, since it uses less digits than its factorization.

12454534785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10783173.

The product of its digits is 2688000, while the sum is 48.

It can be divided in two parts, 124545 and 34785, that added together give a triangular number (159330 = T₅₆₄).

The spelling of 12454534785 in words is "twelve billion, four hundred fifty-four million, five hundred thirty-four thousand, seven hundred eighty-five".