12752737597 has 4 divisors (see below), whose sum is σ = 12753576220. Its totient is φ = 12751898976.

The previous prime is 12752737583. The next prime is 12752737601. The reversal of 12752737597 is 79573725721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177582276 + 12575155321 = 13326^2 + 112139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12752737597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12752737567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396072 + ... + 427057.

It is an arithmetic number, because the mean of its divisors is an integer number (3188394055).

Almost surely, 2^12752737597 is an apocalyptic number.

It is an amenable number.

12752737597 is a deficient number, since it is larger than the sum of its proper divisors (838623).

12752737597 is an equidigital number, since it uses as much as digits as its factorization.

12752737597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838622.

The product of its digits is 6482700, while the sum is 55.

The spelling of 12752737597 in words is "twelve billion, seven hundred fifty-two million, seven hundred thirty-seven thousand, five hundred ninety-seven".