12971068536 has 32 divisors (see below), whose sum is σ = 32506981200. Its totient is φ = 4313114880.

The previous prime is 12971068531. The next prime is 12971068541. The reversal of 12971068536 is 63586017921.

It is an interprime number because it is at equal distance from previous prime (12971068531) and next prime (12971068541).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12971068531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650895 + ... + 670526.

Almost surely, 2^12971068536 is an apocalyptic number.

It is an amenable number.

12971068536 is an abundant number, since it is smaller than the sum of its proper divisors (19535912664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12971068536 is a wasteful number, since it uses less digits than its factorization.

12971068536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321839 (or 1321835 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 12971068536 in words is "twelve billion, nine hundred seventy-one million, sixty-eight thousand, five hundred thirty-six".