14400978186 has 24 divisors (see below), whose sum is σ = 33504317280. Its totient is φ = 4114565112.

The previous prime is 14400978181. The next prime is 14400978187. The reversal of 14400978186 is 68187900441.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14400978181) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24491166 + ... + 24491753.

It is an arithmetic number, because the mean of its divisors is an integer number (1396013220).

Almost surely, 2^14400978186 is an apocalyptic number.

14400978186 is an abundant number, since it is smaller than the sum of its proper divisors (19103339094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14400978186 is a wasteful number, since it uses less digits than its factorization.

14400978186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48982938 (or 48982931 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 14400978186 in words is "fourteen billion, four hundred million, nine hundred seventy-eight thousand, one hundred eighty-six".