3531939968 has 16 divisors (see below), whose sum is σ = 7036286910. Its totient is φ = 1765969920.

The previous prime is 3531939967. The next prime is 3531939997. The reversal of 3531939968 is 8699391353.

It can be written as a sum of positive squares in only one way, i.e., 3252649024 + 279290944 = 57032^2 + 16712^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (3531939967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13796513 + ... + 13796768.

Almost surely, 2^3531939968 is an apocalyptic number.

It is an amenable number.

3531939968 is a deficient number, since it is larger than the sum of its proper divisors (3504346942).

3531939968 is an equidigital number, since it uses as much as digits as its factorization.

3531939968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27593295 (or 27593283 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 56.

The square root of 3531939968 is about 59430.1267708559. The cubic root of 3531939968 is about 1522.8990103023.

The spelling of 3531939968 in words is "three billion, five hundred thirty-one million, nine hundred thirty-nine thousand, nine hundred sixty-eight".