12579099506 has 16 divisors (see below), whose sum is σ = 19182348888. Its totient is φ = 6185030400.

The previous prime is 12579099503. The next prime is 12579099517. The reversal of 12579099506 is 60599097521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11969454025 + 609645481 = 109405^2 + 24691^2 .

It is a super-4 number, since 4×12579099506⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (12579099503) 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, 701306 + ... + 719018.

Almost surely, 2^12579099506 is an apocalyptic number.

12579099506 is a deficient number, since it is larger than the sum of its proper divisors (6603249382).

12579099506 is a wasteful number, since it uses less digits than its factorization.

12579099506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23597.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 12579099506 in words is "twelve billion, five hundred seventy-nine million, ninety-nine thousand, five hundred six".