12789532659 has 16 divisors (see below), whose sum is σ = 17118116640. Its totient is φ = 8493711360.

The previous prime is 12789532619. The next prime is 12789532669. The reversal of 12789532659 is 95623598721.

It is a happy number.

It is not a de Polignac number, because 12789532659 - 2¹³ = 12789524467 is a prime.

It is a super-2 number, since 2×12789532659² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12789532599 and 12789532608.

It is not an unprimeable number, because it can be changed into a prime (12789532619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926899 + ... + 940595.

It is an arithmetic number, because the mean of its divisors is an integer number (1069882290).

Almost surely, 2^12789532659 is an apocalyptic number.

12789532659 is a deficient number, since it is larger than the sum of its proper divisors (4328583981).

12789532659 is a wasteful number, since it uses less digits than its factorization.

12789532659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870.

The product of its digits is 8164800, while the sum is 57.

The spelling of 12789532659 in words is "twelve billion, seven hundred eighty-nine million, five hundred thirty-two thousand, six hundred fifty-nine".