3957316842 has 32 divisors (see below), whose sum is σ = 8525168640. Its totient is φ = 1221050160.

The previous prime is 3957316837. The next prime is 3957316859. The reversal of 3957316842 is 2486137593.

It is a junction number, because it is equal to n+sod(n) for n = 3957316791 and 3957316800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458242 + ... + 466797.

It is an arithmetic number, because the mean of its divisors is an integer number (266411520).

Almost surely, 2^3957316842 is an apocalyptic number.

3957316842 is an abundant number, since it is smaller than the sum of its proper divisors (4567851798).

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

3957316842 is a wasteful number, since it uses less digits than its factorization.

3957316842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925098.

The product of its digits is 1088640, while the sum is 48.

The square root of 3957316842 is about 62907.2081879334. The cubic root of 3957316842 is about 1581.7345744956.

The spelling of 3957316842 in words is "three billion, nine hundred fifty-seven million, three hundred sixteen thousand, eight hundred forty-two".