12971328178 has 16 divisors (see below), whose sum is σ = 19958472576. Its totient is φ = 6318931360.

The previous prime is 12971328131. The next prime is 12971328217. The reversal of 12971328178 is 87182317921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45526 + ... + 167377.

It is an arithmetic number, because the mean of its divisors is an integer number (1247404536).

Almost surely, 2^12971328178 is an apocalyptic number.

12971328178 is a deficient number, since it is larger than the sum of its proper divisors (6987144398).

12971328178 is a wasteful number, since it uses less digits than its factorization.

12971328178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213689.

The product of its digits is 338688, while the sum is 49.

The spelling of 12971328178 in words is "twelve billion, nine hundred seventy-one million, three hundred twenty-eight thousand, one hundred seventy-eight".