1868688832 has 28 divisors (see below), whose sum is σ = 3714136336. Its totient is φ = 932843520.

The previous prime is 1868688803. The next prime is 1868688847. The reversal of 1868688832 is 2388868681.

It is a congruent number.

It is an unprimeable number.

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, 17248 + ... + 63520.

Almost surely, 2^1868688832 is an apocalyptic number.

It is an amenable number.

1868688832 is a deficient number, since it is larger than the sum of its proper divisors (1845447504).

1868688832 is an equidigital number, since it uses as much as digits as its factorization.

1868688832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46916 (or 46906 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 58.

The square root of 1868688832 is about 43228.3336713318. Note that the first 3 decimals coincide. The cubic root of 1868688832 is about 1231.7209549611.

The spelling of 1868688832 in words is "one billion, eight hundred sixty-eight million, six hundred eighty-eight thousand, eight hundred thirty-two".