2144747788 has 6 divisors (see below), whose sum is σ = 3753308636. Its totient is φ = 1072373892.

The previous prime is 2144747783. The next prime is 2144747789. The reversal of 2144747788 is 8877474412.

It is not an unprimeable number, because it can be changed into a prime (2144747783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268093470 + ... + 268093477.

Almost surely, 2^2144747788 is an apocalyptic number.

It is an amenable number.

2144747788 is a deficient number, since it is larger than the sum of its proper divisors (1608560848).

2144747788 is a wasteful number, since it uses less digits than its factorization.

2144747788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536186951 (or 536186949 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 52.

The square root of 2144747788 is about 46311.4217877188. The cubic root of 2144747788 is about 1289.6110415183.

The spelling of 2144747788 in words is "two billion, one hundred forty-four million, seven hundred forty-seven thousand, seven hundred eighty-eight".