53797859868 has 12 divisors (see below), whose sum is σ = 125528339720. Its totient is φ = 17932619952.

The previous prime is 53797859861. The next prime is 53797859873. The reversal of 53797859868 is 86895879735.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53797859868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53797859861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241577483 + ... + 2241577506.

Almost surely, 2^53797859868 is an apocalyptic number.

It is an amenable number.

53797859868 is an abundant number, since it is smaller than the sum of its proper divisors (71730479852).

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

53797859868 is a wasteful number, since it uses less digits than its factorization.

53797859868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483154996 (or 4483154994 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 75.

The spelling of 53797859868 in words is "fifty-three billion, seven hundred ninety-seven million, eight hundred fifty-nine thousand, eight hundred sixty-eight".