228078643894 has 16 divisors (see below), whose sum is σ = 357142014432. Its totient is φ = 109035454528.

The previous prime is 228078643823. The next prime is 228078643939. The reversal of 228078643894 is 498346870822.

228078643894 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 925909 + ... + 1146064.

It is an arithmetic number, because the mean of its divisors is an integer number (22321375902).

Almost surely, 2^228078643894 is an apocalyptic number.

228078643894 is a deficient number, since it is larger than the sum of its proper divisors (129063370538).

228078643894 is a wasteful number, since it uses less digits than its factorization.

228078643894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074391.

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 228078643894 in words is "two hundred twenty-eight billion, seventy-eight million, six hundred forty-three thousand, eight hundred ninety-four".