1868068321 has 32 divisors (see below), whose sum is σ = 2299991040. Its totient is φ = 1483163136.

The previous prime is 1868068297. The next prime is 1868068327. The reversal of 1868068321 is 1238608681.

It is not a de Polignac number, because 1868068321 - 2⁷ = 1868068193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868068327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546600 + ... + 550006.

It is an arithmetic number, because the mean of its divisors is an integer number (71874720).

Almost surely, 2^1868068321 is an apocalyptic number.

It is an amenable number.

1868068321 is a deficient number, since it is larger than the sum of its proper divisors (431922719).

1868068321 is a wasteful number, since it uses less digits than its factorization.

1868068321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1868068321 is about 43221.1559424317. The cubic root of 1868068321 is about 1231.5846060586.

The spelling of 1868068321 in words is "one billion, eight hundred sixty-eight million, sixty-eight thousand, three hundred twenty-one".