2192218437908 has 72 divisors (see below), whose sum is σ = 4027312921464. Its totient is φ = 1043728957440.

The previous prime is 2192218437901. The next prime is 2192218437923. The reversal of 2192218437908 is 8097348122912.

It can be written as a sum of positive squares in 12 ways, for example, as 1787109101584 + 405109336324 = 1336828^2 + 636482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192218437901) 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 23 ways as a sum of consecutive naturals, for example, 68763860 + ... + 68795732.

It is an arithmetic number, because the mean of its divisors is an integer number (55934901687).

Almost surely, 2^{2192218437908} is an apocalyptic number.

It is an amenable number.

2192218437908 is a deficient number, since it is larger than the sum of its proper divisors (1835094483556).

2192218437908 is a wasteful number, since it uses less digits than its factorization.

2192218437908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205 (or 32162 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 2192218437908 in words is "two trillion, one hundred ninety-two billion, two hundred eighteen million, four hundred thirty-seven thousand, nine hundred eight".