57908193798 has 64 divisors (see below), whose sum is σ = 142932142080. Its totient is φ = 15230823552.

The previous prime is 57908193779. The next prime is 57908193809. The reversal of 57908193798 is 89739180975.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55888 + ... + 344876.

It is an arithmetic number, because the mean of its divisors is an integer number (2233314720).

Almost surely, 2^57908193798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57908193798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71466071040).

57908193798 is an abundant number, since it is smaller than the sum of its proper divisors (85023948282).

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

57908193798 is a wasteful number, since it uses less digits than its factorization.

57908193798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289381.

The product of its (nonzero) digits is 34292160, while the sum is 66.

The spelling of 57908193798 in words is "fifty-seven billion, nine hundred eight million, one hundred ninety-three thousand, seven hundred ninety-eight".