2278664680 has 32 divisors (see below), whose sum is σ = 5396839200. Its totient is φ = 863493696.

The previous prime is 2278664651. The next prime is 2278664681. The reversal of 2278664680 is 864668722.

2278664680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2278664681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498362 + ... + 1499881.

It is an arithmetic number, because the mean of its divisors is an integer number (168651225).

Almost surely, 2^2278664680 is an apocalyptic number.

2278664680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2278664680 is an abundant number, since it is smaller than the sum of its proper divisors (3118174520).

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

2278664680 is a wasteful number, since it uses less digits than its factorization.

2278664680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998273 (or 2998269 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 2278664680 is about 47735.3608973474. The cubic root of 2278664680 is about 1315.9118774583.

The spelling of 2278664680 in words is "two billion, two hundred seventy-eight million, six hundred sixty-four thousand, six hundred eighty".