53859915988 has 24 divisors (see below), whose sum is σ = 95934051360. Its totient is φ = 26450964960.

The previous prime is 53859915953. The next prime is 53859915997. The reversal of 53859915988 is 88951995835.

It is a super-2 number, since 2×53859915988² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182095 + ... + 375337.

It is an arithmetic number, because the mean of its divisors is an integer number (3997252140).

Almost surely, 2^53859915988 is an apocalyptic number.

It is an amenable number.

53859915988 is a deficient number, since it is larger than the sum of its proper divisors (42074135372).

53859915988 is a wasteful number, since it uses less digits than its factorization.

53859915988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194487 (or 194485 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 70.

The spelling of 53859915988 in words is "fifty-three billion, eight hundred fifty-nine million, nine hundred fifteen thousand, nine hundred eighty-eight".