2278109912 has 32 divisors (see below), whose sum is σ = 4635172080. Its totient is φ = 1043402880.

The previous prime is 2278109903. The next prime is 2278109921. The reversal of 2278109912 is 2199018722.

It is an interprime number because it is at equal distance from previous prime (2278109903) and next prime (2278109921).

It is a self number, because there is not a number n which added to its sum of digits gives 2278109912.

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, 69983 + ... + 97230.

Almost surely, 2^2278109912 is an apocalyptic number.

It is an amenable number.

2278109912 is an abundant number, since it is smaller than the sum of its proper divisors (2357062168).

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

2278109912 is a wasteful number, since it uses less digits than its factorization.

2278109912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167363 (or 167359 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 2278109912 is about 47729.5496731323. The cubic root of 2278109912 is about 1315.8050773282.

The spelling of 2278109912 in words is "two billion, two hundred seventy-eight million, one hundred nine thousand, nine hundred twelve".