12641404264 has 8 divisors (see below), whose sum is σ = 23702633010. Its totient is φ = 6320702128.

The previous prime is 12641404247. The next prime is 12641404271. The reversal of 12641404264 is 46240414621.

12641404264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7931327364 + 4710076900 = 89058^2 + 68630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790087759 + ... + 790087774.

Almost surely, 2^12641404264 is an apocalyptic number.

It is an amenable number.

12641404264 is a deficient number, since it is larger than the sum of its proper divisors (11061228746).

12641404264 is a wasteful number, since it uses less digits than its factorization.

12641404264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580175539 (or 1580175535 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 12641404264 its reverse (46240414621), we get a palindrome (58881818885).

The spelling of 12641404264 in words is "twelve billion, six hundred forty-one million, four hundred four thousand, two hundred sixty-four".