1887996768 has 288 divisors, whose sum is σ = 6100448256. Its totient is φ = 500527104.

The previous prime is 1887996763. The next prime is 1887996797. The reversal of 1887996768 is 8676997881.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887996763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16707880 + ... + 16707992.

It is an arithmetic number, because the mean of its divisors is an integer number (21182112).

Almost surely, 2^1887996768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1887996768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050224128).

1887996768 is an abundant number, since it is smaller than the sum of its proper divisors (4212451488).

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

1887996768 is a wasteful number, since it uses less digits than its factorization.

1887996768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 195 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 69.

The square root of 1887996768 is about 43451.0847735704. The cubic root of 1887996768 is about 1235.9486159135.

The spelling of 1887996768 in words is "one billion, eight hundred eighty-seven million, nine hundred ninety-six thousand, seven hundred sixty-eight".