12854637464 has 8 divisors (see below), whose sum is σ = 24102445260. Its totient is φ = 6427318728.

The previous prime is 12854637457. The next prime is 12854637503. The reversal of 12854637464 is 46473645821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803414834 + ... + 803414849.

Almost surely, 2^12854637464 is an apocalyptic number.

It is an amenable number.

12854637464 is a deficient number, since it is larger than the sum of its proper divisors (11247807796).

12854637464 is a wasteful number, since it uses less digits than its factorization.

12854637464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606829689 (or 1606829685 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

The spelling of 12854637464 in words is "twelve billion, eight hundred fifty-four million, six hundred thirty-seven thousand, four hundred sixty-four".