2278558064 has 40 divisors (see below), whose sum is σ = 4494690000. Its totient is φ = 1118813696.

The previous prime is 2278558049. The next prime is 2278558091. The reversal of 2278558064 is 4608558722.

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, 206807 + ... + 217545.

It is an arithmetic number, because the mean of its divisors is an integer number (112367250).

Almost surely, 2^2278558064 is an apocalyptic number.

It is an amenable number.

2278558064 is a deficient number, since it is larger than the sum of its proper divisors (2216131936).

2278558064 is a wasteful number, since it uses less digits than its factorization.

2278558064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985 (or 10979 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 2278558064 is about 47734.2441440105. The cubic root of 2278558064 is about 1315.8913538229.

The spelling of 2278558064 in words is "two billion, two hundred seventy-eight million, five hundred fifty-eight thousand, sixty-four".