1887016668 has 24 divisors (see below), whose sum is σ = 4412244480. Its totient is φ = 627690480.

The previous prime is 1887016661. The next prime is 1887016693. The reversal of 1887016668 is 8666107881.

It is a self number, because there is not a number n which added to its sum of digits gives 1887016668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887016661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 158398 + ... + 169893.

It is an arithmetic number, because the mean of its divisors is an integer number (183843520).

Almost surely, 2^1887016668 is an apocalyptic number.

It is an amenable number.

1887016668 is an abundant number, since it is smaller than the sum of its proper divisors (2525227812).

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

1887016668 is a wasteful number, since it uses less digits than its factorization.

1887016668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328777 (or 328775 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 1887016668 is about 43439.8051100601. The cubic root of 1887016668 is about 1235.7347096659.

The spelling of 1887016668 in words is "one billion, eight hundred eighty-seven million, sixteen thousand, six hundred sixty-eight".