1671318764 has 12 divisors (see below), whose sum is σ = 2945850600. Its totient is φ = 829647168.

The previous prime is 1671318757. The next prime is 1671318767. The reversal of 1671318764 is 4678131761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1671318767) 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 3 ways as a sum of consecutive naturals, for example, 1502429 + ... + 1503540.

It is an arithmetic number, because the mean of its divisors is an integer number (245487550).

Almost surely, 2^1671318764 is an apocalyptic number.

It is an amenable number.

1671318764 is a deficient number, since it is larger than the sum of its proper divisors (1274531836).

1671318764 is a wasteful number, since it uses less digits than its factorization.

1671318764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006112 (or 3006110 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 1671318764 is about 40881.7656663701. The cubic root of 1671318764 is about 1186.7332109649.

The spelling of 1671318764 in words is "one billion, six hundred seventy-one million, three hundred eighteen thousand, seven hundred sixty-four".