1685364968 has 32 divisors (see below), whose sum is σ = 3613028160. Its totient is φ = 721992960.

The previous prime is 1685364953. The next prime is 1685364977. The reversal of 1685364968 is 8694635861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169955 + ... + 179597.

It is an arithmetic number, because the mean of its divisors is an integer number (112907130).

Almost surely, 2^1685364968 is an apocalyptic number.

It is an amenable number.

1685364968 is an abundant number, since it is smaller than the sum of its proper divisors (1927663192).

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

1685364968 is a wasteful number, since it uses less digits than its factorization.

1685364968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777 (or 12773 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 1685364968 is about 41053.1968060954. The cubic root of 1685364968 is about 1190.0484804767.

The spelling of 1685364968 in words is "one billion, six hundred eighty-five million, three hundred sixty-four thousand, nine hundred sixty-eight".