3965315642 has 8 divisors (see below), whose sum is σ = 5962102932. Its totient is φ = 1977948000.

The previous prime is 3965315633. The next prime is 3965315647. The reversal of 3965315642 is 2465135693.

It can be written as a sum of positive squares in 2 ways, for example, as 3849085681 + 116229961 = 62041^2 + 10781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3965315593 and 3965315602.

It is not an unprimeable number, because it can be changed into a prime (3965315647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353859 + ... + 2355542.

Almost surely, 2^3965315642 is an apocalyptic number.

3965315642 is a deficient number, since it is larger than the sum of its proper divisors (1996787290).

3965315642 is a wasteful number, since it uses less digits than its factorization.

3965315642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4709824.

The product of its digits is 583200, while the sum is 44.

The square root of 3965315642 is about 62970.7522743694. The cubic root of 3965315642 is about 1582.7995607165.

The spelling of 3965315642 in words is "three billion, nine hundred sixty-five million, three hundred fifteen thousand, six hundred forty-two".