12944953178 has 8 divisors (see below), whose sum is σ = 20559631572. Its totient is φ = 6091742656.

The previous prime is 12944953159. The next prime is 12944953181. The reversal of 12944953178 is 87135944921.

It can be written as a sum of positive squares in 2 ways, for example, as 12310568209 + 634384969 = 110953^2 + 25187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12944953178² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190366925 + ... + 190366992.

Almost surely, 2^12944953178 is an apocalyptic number.

12944953178 is a deficient number, since it is larger than the sum of its proper divisors (7614678394).

12944953178 is a wasteful number, since it uses less digits than its factorization.

12944953178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380733936.

The product of its digits is 2177280, while the sum is 53.

The spelling of 12944953178 in words is "twelve billion, nine hundred forty-four million, nine hundred fifty-three thousand, one hundred seventy-eight".