1873638066 has 8 divisors (see below), whose sum is σ = 3747276144. Its totient is φ = 624546020.

The previous prime is 1873638001. The next prime is 1873638071. The reversal of 1873638066 is 6608363781.

It is a sphenic number, since it is the product of 3 distinct primes.

1873638066 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156136500 + ... + 156136511.

It is an arithmetic number, because the mean of its divisors is an integer number (468409518).

Almost surely, 2^1873638066 is an apocalyptic number.

1873638066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873638066 is a wasteful number, since it uses less digits than its factorization.

1873638066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312273016.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 1873638066 is about 43285.5410732036. The cubic root of 1873638066 is about 1232.8074032411.

It can be divided in two parts, 187 and 3638066, that added together give a triangular number (3638253 = T₂₆₉₇).

The spelling of 1873638066 in words is "one billion, eight hundred seventy-three million, six hundred thirty-eight thousand, sixty-six".