3913642872 has 32 divisors (see below), whose sum is σ = 10871230800. Its totient is φ = 1304547552.

The previous prime is 3913642867. The next prime is 3913642919. The reversal of 3913642872 is 2782463193.

3913642872 is a `hidden beast` number, since 3 + 9 + 1 + 364 + 287 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9059143 + ... + 9059574.

Almost surely, 2^3913642872 is an apocalyptic number.

It is an amenable number.

3913642872 is an abundant number, since it is smaller than the sum of its proper divisors (6957587928).

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

3913642872 is a wasteful number, since it uses less digits than its factorization.

3913642872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118732 (or 18118722 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 3913642872 is about 62559.1150193159. The cubic root of 3913642872 is about 1575.8942259828.

The spelling of 3913642872 in words is "three billion, nine hundred thirteen million, six hundred forty-two thousand, eight hundred seventy-two".