3500681568 has 48 divisors (see below), whose sum is σ = 9193360176. Its totient is φ = 1166376960.

The previous prime is 3500681567. The next prime is 3500681573. The reversal of 3500681568 is 8651860053.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500681567) 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 7 ways as a sum of consecutive naturals, for example, 253728 + ... + 267168.

It is an arithmetic number, because the mean of its divisors is an integer number (191528337).

Almost surely, 2^3500681568 is an apocalyptic number.

It is an amenable number.

3500681568 is an abundant number, since it is smaller than the sum of its proper divisors (5692678608).

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

3500681568 is a wasteful number, since it uses less digits than its factorization.

3500681568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16167 (or 16159 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 3500681568 is about 59166.5578515431. The cubic root of 3500681568 is about 1518.3930339161.

The spelling of 3500681568 in words is "three billion, five hundred million, six hundred eighty-one thousand, five hundred sixty-eight".