12926465768 has 8 divisors (see below), whose sum is σ = 24237123330. Its totient is φ = 6463232880.

The previous prime is 12926465753. The next prime is 12926465779. The reversal of 12926465768 is 86756462921.

It can be written as a sum of positive squares in only one way, i.e., 8866482244 + 4059983524 = 94162^2 + 63718^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807904103 + ... + 807904118.

Almost surely, 2^12926465768 is an apocalyptic number.

It is an amenable number.

12926465768 is a deficient number, since it is larger than the sum of its proper divisors (11310657562).

12926465768 is a wasteful number, since it uses less digits than its factorization.

12926465768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615808227 (or 1615808223 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 12926465768 in words is "twelve billion, nine hundred twenty-six million, four hundred sixty-five thousand, seven hundred sixty-eight".