12576532690 has 16 divisors (see below), whose sum is σ = 22669700760. Its totient is φ = 5023514880.

The previous prime is 12576532669. The next prime is 12576532691. The reversal of 12576532690 is 9623567521.

It can be written as a sum of positive squares in 4 ways, for example, as 5225699521 + 7350833169 = 72289^2 + 85737^2 .

It is a super-2 number, since 2×12576532690² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12576532690.

It is not an unprimeable number, because it can be changed into a prime (12576532691) 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, 879831 + ... + 894010.

Almost surely, 2^12576532690 is an apocalyptic number.

12576532690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12576532690 is a deficient number, since it is larger than the sum of its proper divisors (10093168070).

12576532690 is a wasteful number, since it uses less digits than its factorization.

12576532690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774557.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 12576532690 in words is "twelve billion, five hundred seventy-six million, five hundred thirty-two thousand, six hundred ninety".