2144062778 has 24 divisors (see below), whose sum is σ = 3799115136. Its totient is φ = 899605200.

The previous prime is 2144062769. The next prime is 2144062787. The reversal of 2144062778 is 8772604412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2144062769) and next prime (2144062787).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284618 + ... + 292053.

It is an arithmetic number, because the mean of its divisors is an integer number (158296464).

Almost surely, 2^2144062778 is an apocalyptic number.

2144062778 is a deficient number, since it is larger than the sum of its proper divisors (1655052358).

2144062778 is a wasteful number, since it uses less digits than its factorization.

2144062778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576710 (or 576697 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 2144062778 is about 46304.0255053489. The cubic root of 2144062778 is about 1289.4737308081.

The spelling of 2144062778 in words is "two billion, one hundred forty-four million, sixty-two thousand, seven hundred seventy-eight".