12649541795 has 16 divisors (see below), whose sum is σ = 16573870080. Its totient is φ = 9191628000.

The previous prime is 12649541791. The next prime is 12649541809. The reversal of 12649541795 is 59714594621.

It is not a de Polignac number, because 12649541795 - 2² = 12649541791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12649541791) 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, 36605 + ... + 163214.

It is an arithmetic number, because the mean of its divisors is an integer number (1035866880).

Almost surely, 2^12649541795 is an apocalyptic number.

12649541795 is a deficient number, since it is larger than the sum of its proper divisors (3924328285).

12649541795 is a wasteful number, since it uses less digits than its factorization.

12649541795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200986.

The product of its digits is 2721600, while the sum is 53.

The spelling of 12649541795 in words is "twelve billion, six hundred forty-nine million, five hundred forty-one thousand, seven hundred ninety-five".