12972600505 has 8 divisors (see below), whose sum is σ = 15597707400. Its totient is φ = 10357689216.

The previous prime is 12972600503. The next prime is 12972600523. The reversal of 12972600505 is 50500627921.

It can be written as a sum of positive squares in 4 ways, for example, as 3541083049 + 9431517456 = 59507^2 + 97116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12972600505 - 2¹ = 12972600503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12972600503) 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, 2546100 + ... + 2551189.

It is an arithmetic number, because the mean of its divisors is an integer number (1949713425).

Almost surely, 2^12972600505 is an apocalyptic number.

It is an amenable number.

12972600505 is a deficient number, since it is larger than the sum of its proper divisors (2625106895).

12972600505 is an equidigital number, since it uses as much as digits as its factorization.

12972600505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097803.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 12972600505 in words is "twelve billion, nine hundred seventy-two million, six hundred thousand, five hundred five".