3144186978 has 16 divisors (see below), whose sum is σ = 6298540320. Its totient is φ = 1046367936.

The previous prime is 3144186973. The next prime is 3144187001. The reversal of 3144186978 is 8796814413.

It is a self number, because there is not a number n which added to its sum of digits gives 3144186978.

It is not an unprimeable number, because it can be changed into a prime (3144186973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419575 + ... + 427002.

It is an arithmetic number, because the mean of its divisors is an integer number (393658770).

Almost surely, 2^3144186978 is an apocalyptic number.

3144186978 is an abundant number, since it is smaller than the sum of its proper divisors (3154353342).

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

3144186978 is a wasteful number, since it uses less digits than its factorization.

3144186978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847201.

The product of its digits is 1161216, while the sum is 51.

The square root of 3144186978 is about 56073.0503718141. The cubic root of 3144186978 is about 1464.9949295293.

The spelling of 3144186978 in words is "three billion, one hundred forty-four million, one hundred eighty-six thousand, nine hundred seventy-eight".