2101819192 has 32 divisors (see below), whose sum is σ = 4310768880. Its totient is φ = 952796160.

The previous prime is 2101819169. The next prime is 2101819193. The reversal of 2101819192 is 2919181012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101819193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808 + ... + 64840.

Almost surely, 2^2101819192 is an apocalyptic number.

2101819192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101819192 is an abundant number, since it is smaller than the sum of its proper divisors (2208949688).

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

2101819192 is a wasteful number, since it uses less digits than its factorization.

2101819192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64423 (or 64419 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 2101819192 is about 45845.6016647181. The cubic root of 2101819192 is about 1280.9488391134.

The spelling of 2101819192 in words is "two billion, one hundred one million, eight hundred nineteen thousand, one hundred ninety-two".