12812947546 has 24 divisors (see below), whose sum is σ = 22233047904. Its totient is φ = 5425062600.

The previous prime is 12812947457. The next prime is 12812947601. The reversal of 12812947546 is 64574921821.

It is a self number, because there is not a number n which added to its sum of digits gives 12812947546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30021 + ... + 162871.

It is an arithmetic number, because the mean of its divisors is an integer number (926376996).

Almost surely, 2^12812947546 is an apocalyptic number.

12812947546 is a deficient number, since it is larger than the sum of its proper divisors (9420100358).

12812947546 is an equidigital number, since it uses as much as digits as its factorization.

12812947546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133026 (or 132943 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The spelling of 12812947546 in words is "twelve billion, eight hundred twelve million, nine hundred forty-seven thousand, five hundred forty-six".