3968139962 has 8 divisors (see below), whose sum is σ = 6113080596. Its totient is φ = 1930446432.

The previous prime is 3968139961. The next prime is 3968139997. The reversal of 3968139962 is 2699318693.

It can be written as a sum of positive squares in 2 ways, for example, as 3886400281 + 81739681 = 62341^2 + 9041^2 .

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

It is a super-2 number, since 2×3968139962² = 31492269516042722888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3968139898 and 3968139907.

It is not an unprimeable number, because it can be changed into a prime (3968139961) 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, 26811683 + ... + 26811830.

Almost surely, 2^3968139962 is an apocalyptic number.

3968139962 is a deficient number, since it is larger than the sum of its proper divisors (2144940634).

3968139962 is a wasteful number, since it uses less digits than its factorization.

3968139962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53623552.

The product of its digits is 3779136, while the sum is 56.

The square root of 3968139962 is about 62993.1739317841. The cubic root of 3968139962 is about 1583.1752577133.

The spelling of 3968139962 in words is "three billion, nine hundred sixty-eight million, one hundred thirty-nine thousand, nine hundred sixty-two".