12523782659 has 8 divisors (see below), whose sum is σ = 12934737792. Its totient is φ = 12113262720.

The previous prime is 12523782653. The next prime is 12523782671. The reversal of 12523782659 is 95628732521.

It is a happy number.

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 12523782659 - 2¹² = 12523778563 is a prime.

It is a super-2 number, since 2×12523782659² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12523782653) 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, 49784 + ... + 165909.

It is an arithmetic number, because the mean of its divisors is an integer number (1616842224).

Almost surely, 2^12523782659 is an apocalyptic number.

12523782659 is a deficient number, since it is larger than the sum of its proper divisors (410955133).

12523782659 is a wasteful number, since it uses less digits than its factorization.

12523782659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217597.

The product of its digits is 1814400, while the sum is 50.

The spelling of 12523782659 in words is "twelve billion, five hundred twenty-three million, seven hundred eighty-two thousand, six hundred fifty-nine".