2278068164 has 6 divisors (see below), whose sum is σ = 3986619294. Its totient is φ = 1139034080.

The previous prime is 2278068151. The next prime is 2278068167. The reversal of 2278068164 is 4618608722.

It can be written as a sum of positive squares in only one way, i.e., 2252261764 + 25806400 = 47458^2 + 5080^2 .

It is not an unprimeable number, because it can be changed into a prime (2278068167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284758517 + ... + 284758524.

It is an arithmetic number, because the mean of its divisors is an integer number (664436549).

Almost surely, 2^2278068164 is an apocalyptic number.

It is an amenable number.

2278068164 is a deficient number, since it is larger than the sum of its proper divisors (1708551130).

2278068164 is a wasteful number, since it uses less digits than its factorization.

2278068164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569517045 (or 569517043 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 2278068164 is about 47729.1123319929. The cubic root of 2278068164 is about 1315.7970395881.

The spelling of 2278068164 in words is "two billion, two hundred seventy-eight million, sixty-eight thousand, one hundred sixty-four".