20395458192 has 60 divisors (see below), whose sum is σ = 55473064080. Its totient is φ = 6439309056.

The previous prime is 20395458131. The next prime is 20395458199. The reversal of 20395458192 is 29185459302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (20395458199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4310484 + ... + 4315212.

It is an arithmetic number, because the mean of its divisors is an integer number (924551068).

Almost surely, 2^20395458192 is an apocalyptic number.

It is an amenable number.

20395458192 is an abundant number, since it is smaller than the sum of its proper divisors (35077605888).

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

20395458192 is an frugal number, since it uses more digits than its factorization.

20395458192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488 (or 4753 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 20395458192 in words is "twenty billion, three hundred ninety-five million, four hundred fifty-eight thousand, one hundred ninety-two".