3521793668 has 6 divisors (see below), whose sum is σ = 6163138926. Its totient is φ = 1760896832.

The previous prime is 3521793643. The next prime is 3521793673. The reversal of 3521793668 is 8663971253.

It can be written as a sum of positive squares in only one way, i.e., 3390965824 + 130827844 = 58232^2 + 11438^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440224205 + ... + 440224212.

It is an arithmetic number, because the mean of its divisors is an integer number (1027189821).

Almost surely, 2^3521793668 is an apocalyptic number.

It is an amenable number.

3521793668 is a deficient number, since it is larger than the sum of its proper divisors (2641345258).

3521793668 is a wasteful number, since it uses less digits than its factorization.

3521793668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880448421 (or 880448419 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 3521793668 is about 59344.7021055797. The cubic root of 3521793668 is about 1521.4393205107.

The spelling of 3521793668 in words is "three billion, five hundred twenty-one million, seven hundred ninety-three thousand, six hundred sixty-eight".