2192051908 has 6 divisors (see below), whose sum is σ = 3836090846. Its totient is φ = 1096025952.

The previous prime is 2192051887. The next prime is 2192051909. The reversal of 2192051908 is 8091502912.

It can be written as a sum of positive squares in only one way, i.e., 2176035904 + 16016004 = 46648^2 + 4002^2 .

It is not an unprimeable number, because it can be changed into a prime (2192051909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274006485 + ... + 274006492.

Almost surely, 2^2192051908 is an apocalyptic number.

It is an amenable number.

2192051908 is a deficient number, since it is larger than the sum of its proper divisors (1644038938).

2192051908 is a wasteful number, since it uses less digits than its factorization.

2192051908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548012981 (or 548012979 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 2192051908 is about 46819.3539895629. The cubic root of 2192051908 is about 1299.0233113690.

The spelling of 2192051908 in words is "two billion, one hundred ninety-two million, fifty-one thousand, nine hundred eight".