12905576705 has 16 divisors (see below), whose sum is σ = 17726719104. Its totient is φ = 8835717120.

The previous prime is 12905576669. The next prime is 12905576711. The reversal of 12905576705 is 50767550921.

It is not a de Polignac number, because 12905576705 - 2⁸ = 12905576449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12905576705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265187 + ... + 310056.

It is an arithmetic number, because the mean of its divisors is an integer number (1107919944).

Almost surely, 2^12905576705 is an apocalyptic number.

It is an amenable number.

12905576705 is a deficient number, since it is larger than the sum of its proper divisors (4821142399).

12905576705 is an equidigital number, since it uses as much as digits as its factorization.

12905576705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575896.

The product of its (nonzero) digits is 661500, while the sum is 47.

The spelling of 12905576705 in words is "twelve billion, nine hundred five million, five hundred seventy-six thousand, seven hundred five".