1827685616 has 80 divisors (see below), whose sum is σ = 3797756928. Its totient is φ = 850080000.

The previous prime is 1827685603. The next prime is 1827685637. The reversal of 1827685616 is 6165867281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4341086 + ... + 4341506.

Almost surely, 2^1827685616 is an apocalyptic number.

1827685616 is a gapful number since it is divisible by the number (16) 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 1827685616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898878464).

1827685616 is an abundant number, since it is smaller than the sum of its proper divisors (1970071312).

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

1827685616 is a wasteful number, since it uses less digits than its factorization.

1827685616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 744 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 1827685616 is about 42751.4399289661. The cubic root of 1827685616 is about 1222.6453429625.

The spelling of 1827685616 in words is "one billion, eight hundred twenty-seven million, six hundred eighty-five thousand, six hundred sixteen".