1668763464 has 48 divisors (see below), whose sum is σ = 4393779600. Its totient is φ = 526702464.

The previous prime is 1668763441. The next prime is 1668763507. The reversal of 1668763464 is 4643678661.

It is a super-3 number, since 3×1668763464³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 871372 + ... + 873284.

It is an arithmetic number, because the mean of its divisors is an integer number (91537075).

Almost surely, 2^1668763464 is an apocalyptic number.

It is an amenable number.

1668763464 is an abundant number, since it is smaller than the sum of its proper divisors (2725016136).

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

1668763464 is an equidigital number, since it uses as much as digits as its factorization.

1668763464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854 (or 1937 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 51.

The square root of 1668763464 is about 40850.5013922718. The cubic root of 1668763464 is about 1186.1280987608.

The spelling of 1668763464 in words is "one billion, six hundred sixty-eight million, seven hundred sixty-three thousand, four hundred sixty-four".