1799085618 has 96 divisors (see below), whose sum is σ = 4324320000. Its totient is φ = 536047200.

The previous prime is 1799085529. The next prime is 1799085641. The reversal of 1799085618 is 8165809971.

1799085618 is a `hidden beast` number, since 1 + 79 + 9 + 0 + 8 + 561 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3605133 + ... + 3605631.

It is an arithmetic number, because the mean of its divisors is an integer number (45045000).

Almost surely, 2^1799085618 is an apocalyptic number.

1799085618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1799085618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162160000).

1799085618 is an abundant number, since it is smaller than the sum of its proper divisors (2525234382).

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

1799085618 is a wasteful number, since it uses less digits than its factorization.

1799085618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The square root of 1799085618 is about 42415.6294070947. The cubic root of 1799085618 is about 1216.2343843735.

It can be divided in two parts, 179908561 and 8, that added together give a square (179908569 = 13413²).

The spelling of 1799085618 in words is "one billion, seven hundred ninety-nine million, eighty-five thousand, six hundred eighteen".