1813769768 has 32 divisors (see below), whose sum is σ = 3435372000. Its totient is φ = 897718080.

The previous prime is 1813769743. The next prime is 1813769813. The reversal of 1813769768 is 8679673181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325163 + ... + 330693.

It is an arithmetic number, because the mean of its divisors is an integer number (107355375).

Almost surely, 2^1813769768 is an apocalyptic number.

It is an amenable number.

1813769768 is a deficient number, since it is larger than the sum of its proper divisors (1621602232).

1813769768 is a wasteful number, since it uses less digits than its factorization.

1813769768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945 (or 5941 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The square root of 1813769768 is about 42588.3759727933. The cubic root of 1813769768 is about 1219.5343936783.

The spelling of 1813769768 in words is "one billion, eight hundred thirteen million, seven hundred sixty-nine thousand, seven hundred sixty-eight".