12731897007 has 16 divisors (see below), whose sum is σ = 18872899680. Its totient is φ = 8483057856.

The previous prime is 12731896981. The next prime is 12731897011. The reversal of 12731897007 is 70079813721.

It is not a de Polignac number, because 12731897007 - 2¹⁰ = 12731895983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731897027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87168 + ... + 181829.

It is an arithmetic number, because the mean of its divisors is an integer number (1179556230).

Almost surely, 2^12731897007 is an apocalyptic number.

12731897007 is a deficient number, since it is larger than the sum of its proper divisors (6141002673).

12731897007 is a wasteful number, since it uses less digits than its factorization.

12731897007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270759 (or 270753 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The spelling of 12731897007 in words is "twelve billion, seven hundred thirty-one million, eight hundred ninety-seven thousand, seven".