4391541868 has 12 divisors (see below), whose sum is σ = 8783083792. Its totient is φ = 1882089360.

The previous prime is 4391541799. The next prime is 4391541901. The reversal of 4391541868 is 8681451934.

It is a happy number.

4391541868 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78420363 + ... + 78420418.

Almost surely, 2^4391541868 is an apocalyptic number.

It is an amenable number.

4391541868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4391541868 is a wasteful number, since it uses less digits than its factorization.

4391541868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156840792 (or 156840790 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 4391541868 is about 66268.7095694491. The cubic root of 4391541868 is about 1637.5918786743.

The spelling of 4391541868 in words is "four billion, three hundred ninety-one million, five hundred forty-one thousand, eight hundred sixty-eight".