4078186868 has 24 divisors (see below), whose sum is σ = 8179113600. Its totient is φ = 1742921568.

The previous prime is 4078186727. The next prime is 4078186873. The reversal of 4078186868 is 8686818704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192803 + ... + 212906.

It is an arithmetic number, because the mean of its divisors is an integer number (340796400).

Almost surely, 2^4078186868 is an apocalyptic number.

It is an amenable number.

4078186868 is an abundant number, since it is smaller than the sum of its proper divisors (4100926732).

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

4078186868 is a wasteful number, since it uses less digits than its factorization.

4078186868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406079 (or 406077 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 56.

The square root of 4078186868 is about 63860.6832722607. The cubic root of 4078186868 is about 1597.6772113106.

The spelling of 4078186868 in words is "four billion, seventy-eight million, one hundred eighty-six thousand, eight hundred sixty-eight".