20135823192 has 48 divisors (see below), whose sum is σ = 57404763000. Its totient is φ = 6358680576.

The previous prime is 20135823181. The next prime is 20135823193. The reversal of 20135823192 is 29132853102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135823193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7358217 + ... + 7360952.

Almost surely, 2^20135823192 is an apocalyptic number.

It is an amenable number.

20135823192 is an abundant number, since it is smaller than the sum of its proper divisors (37268939808).

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

20135823192 is a wasteful number, since it uses less digits than its factorization.

20135823192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14719200 (or 14719193 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 20135823192 in words is "twenty billion, one hundred thirty-five million, eight hundred twenty-three thousand, one hundred ninety-two".