2278340198012 has 12 divisors (see below), whose sum is σ = 3987198402096. Its totient is φ = 1139140654560.

The previous prime is 2278340198011. The next prime is 2278340198023. The reversal of 2278340198012 is 2108910438722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278340198011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186553 + ... + 7496880.

It is an arithmetic number, because the mean of its divisors is an integer number (332266533508).

Almost surely, 2^{2278340198012} is an apocalyptic number.

It is an amenable number.

2278340198012 is a deficient number, since it is larger than the sum of its proper divisors (1708858204084).

2278340198012 is a wasteful number, since it uses less digits than its factorization.

2278340198012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14722228 (or 14722226 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 2278340198012 in words is "two trillion, two hundred seventy-eight billion, three hundred forty million, one hundred ninety-eight thousand, twelve".