1806698674 has 12 divisors (see below), whose sum is σ = 2978813502. Its totient is φ = 821226560.

The previous prime is 1806698639. The next prime is 1806698711. The reversal of 1806698674 is 4768966081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1471259449 + 335439225 = 38357^2 + 18315^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3732607 + ... + 3733090.

Almost surely, 2^1806698674 is an apocalyptic number.

1806698674 is a deficient number, since it is larger than the sum of its proper divisors (1172114828).

1806698674 is a wasteful number, since it uses less digits than its factorization.

1806698674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465721 (or 7465710 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 1806698674 is about 42505.2781898907. The cubic root of 1806698674 is about 1217.9475195405.

The spelling of 1806698674 in words is "one billion, eight hundred six million, six hundred ninety-eight thousand, six hundred seventy-four".