4018978678 has 32 divisors (see below), whose sum is σ = 7088578560. Its totient is φ = 1684812960.

The previous prime is 4018978661. The next prime is 4018978699. The reversal of 4018978678 is 8768798104.

It is a super-2 number, since 2×4018978678² = 32304379228437255368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360301 + ... + 371287.

It is an arithmetic number, because the mean of its divisors is an integer number (221518080).

Almost surely, 2^4018978678 is an apocalyptic number.

4018978678 is a deficient number, since it is larger than the sum of its proper divisors (3069599882).

4018978678 is a wasteful number, since it uses less digits than its factorization.

4018978678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12292.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The square root of 4018978678 is about 63395.4152758699. The cubic root of 4018978678 is about 1589.9076562537.

The spelling of 4018978678 in words is "four billion, eighteen million, nine hundred seventy-eight thousand, six hundred seventy-eight".