2192991852 has 12 divisors (see below), whose sum is σ = 5116981016. Its totient is φ = 730997280.

The previous prime is 2192991851. The next prime is 2192991859. The reversal of 2192991852 is 2581992912.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2192991851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91374649 + ... + 91374672.

Almost surely, 2^2192991852 is an apocalyptic number.

It is an amenable number.

2192991852 is an abundant number, since it is smaller than the sum of its proper divisors (2923989164).

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

2192991852 is a wasteful number, since it uses less digits than its factorization.

2192991852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182749328 (or 182749326 counting only the distinct ones).

The product of its digits is 233280, while the sum is 48.

The square root of 2192991852 is about 46829.3908993060. The cubic root of 2192991852 is about 1299.2089570165.

The spelling of 2192991852 in words is "two billion, one hundred ninety-two million, nine hundred ninety-one thousand, eight hundred fifty-two".