12573505178 has 16 divisors (see below), whose sum is σ = 20806439976. Its totient is φ = 5661615360.

The previous prime is 12573505169. The next prime is 12573505183. The reversal of 12573505178 is 87150537521.

It can be written as a sum of positive squares in 4 ways, for example, as 4998065809 + 7575439369 = 70697^2 + 87037^2 .

It is a super-2 number, since 2×12573505178² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 5896451 + ... + 5898582.

Almost surely, 2^12573505178 is an apocalyptic number.

12573505178 is a deficient number, since it is larger than the sum of its proper divisors (8232934798).

12573505178 is a wasteful number, since it uses less digits than its factorization.

12573505178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11795089.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 12573505178 in words is "twelve billion, five hundred seventy-three million, five hundred five thousand, one hundred seventy-eight".