1856536768 has 28 divisors (see below), whose sum is σ = 3739059832. Its totient is φ = 914411520.

The previous prime is 1856536763. The next prime is 1856536789. The reversal of 1856536768 is 8676356581.

It is not an unprimeable number, because it can be changed into a prime (1856536763) 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 3 ways as a sum of consecutive naturals, for example, 212193 + ... + 220768.

Almost surely, 2^1856536768 is an apocalyptic number.

It is an amenable number.

1856536768 is an abundant number, since it is smaller than the sum of its proper divisors (1882523064).

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

1856536768 is an equidigital number, since it uses as much as digits as its factorization.

1856536768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433040 (or 433030 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The square root of 1856536768 is about 43087.5477139277. The cubic root of 1856536768 is about 1229.0451902172.

The spelling of 1856536768 in words is "one billion, eight hundred fifty-six million, five hundred thirty-six thousand, seven hundred sixty-eight".