1873660216 has 8 divisors (see below), whose sum is σ = 3513112920. Its totient is φ = 936830104.

The previous prime is 1873660211. The next prime is 1873660223. The reversal of 1873660216 is 6120663781.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873660211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117103756 + ... + 117103771.

It is an arithmetic number, because the mean of its divisors is an integer number (439139115).

Almost surely, 2^1873660216 is an apocalyptic number.

It is an amenable number.

1873660216 is a deficient number, since it is larger than the sum of its proper divisors (1639452704).

1873660216 is a wasteful number, since it uses less digits than its factorization.

1873660216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234207533 (or 234207529 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1873660216 is about 43285.7969315571. The cubic root of 1873660216 is about 1232.8122612723.

The spelling of 1873660216 in words is "one billion, eight hundred seventy-three million, six hundred sixty thousand, two hundred sixteen".