1896965568 has 140 divisors (see below), whose sum is σ = 5666366112. Its totient is φ = 627471360.

The previous prime is 1896965561. The next prime is 1896965569. The reversal of 1896965568 is 8655696981.

1896965568 is a `hidden beast` number, since 1 + 8 + 9 + 6 + 9 + 65 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896965561) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 708873 + ... + 711543.

Almost surely, 2^1896965568 is an apocalyptic number.

1896965568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1896965568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2833183056).

1896965568 is an abundant number, since it is smaller than the sum of its proper divisors (3769400544).

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

1896965568 is a wasteful number, since it uses less digits than its factorization.

1896965568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2813 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The square root of 1896965568 is about 43554.1682046621. The cubic root of 1896965568 is about 1237.9026216096.

The spelling of 1896965568 in words is "one billion, eight hundred ninety-six million, nine hundred sixty-five thousand, five hundred sixty-eight".