12512562361 has 8 divisors (see below), whose sum is σ = 13488596744. Its totient is φ = 11538460800.

The previous prime is 12512562323. The next prime is 12512562371. The reversal of 12512562361 is 16326521521.

It can be written as a sum of positive squares in 4 ways, for example, as 1250046736 + 11262515625 = 35356^2 + 106125^2 .

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 12512562361 - 2¹⁹ = 12512038073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512562371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469740 + ... + 495661.

It is an arithmetic number, because the mean of its divisors is an integer number (1686074593).

Almost surely, 2^12512562361 is an apocalyptic number.

It is an amenable number.

12512562361 is a deficient number, since it is larger than the sum of its proper divisors (976034383).

12512562361 is an equidigital number, since it uses as much as digits as its factorization.

12512562361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966411.

The product of its digits is 21600, while the sum is 34.

The spelling of 12512562361 in words is "twelve billion, five hundred twelve million, five hundred sixty-two thousand, three hundred sixty-one".