12654464641 has 48 divisors (see below), whose sum is σ = 16640339328. Its totient is φ = 9389952000.

The previous prime is 12654464633. The next prime is 12654464651. The reversal of 12654464641 is 14646445621.

It is a happy number.

It is not a de Polignac number, because 12654464641 - 2³ = 12654464633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12654464651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6655791 + ... + 6657691.

It is an arithmetic number, because the mean of its divisors is an integer number (346673736).

Almost surely, 2^12654464641 is an apocalyptic number.

It is an amenable number.

12654464641 is a deficient number, since it is larger than the sum of its proper divisors (3985874687).

12654464641 is a wasteful number, since it uses less digits than its factorization.

12654464641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2269 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The spelling of 12654464641 in words is "twelve billion, six hundred fifty-four million, four hundred sixty-four thousand, six hundred forty-one".