53791471899 has 32 divisors (see below), whose sum is σ = 87654247680. Its totient is φ = 32600870280.

The previous prime is 53791471891. The next prime is 53791471933. The reversal of 53791471899 is 99817419735.

53791471899 is a `hidden beast` number, since 5 + 3 + 79 + 1 + 471 + 8 + 99 = 666.

It is not a de Polignac number, because 53791471899 - 2³ = 53791471891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53791471891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 712477 + ... + 784350.

It is an arithmetic number, because the mean of its divisors is an integer number (2739195240).

Almost surely, 2^53791471899 is an apocalyptic number.

53791471899 is a deficient number, since it is larger than the sum of its proper divisors (33862775781).

53791471899 is a wasteful number, since it uses less digits than its factorization.

53791471899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496869 (or 1496841 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 63.

The spelling of 53791471899 in words is "fifty-three billion, seven hundred ninety-one million, four hundred seventy-one thousand, eight hundred ninety-nine".