53868685188520 has 64 divisors (see below), whose sum is σ = 128807779046400. Its totient is φ = 20205141672960.

The previous prime is 53868685188473. The next prime is 53868685188523. The reversal of 53868685188520 is 2588158686835.

It is not an unprimeable number, because it can be changed into a prime (53868685188523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145975600 + ... + 146344159.

It is an arithmetic number, because the mean of its divisors is an integer number (2012621547600).

Almost surely, 2^{53868685188520} is an apocalyptic number.

It is an amenable number.

53868685188520 is an abundant number, since it is smaller than the sum of its proper divisors (74939093857880).

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

53868685188520 is a wasteful number, since it uses less digits than its factorization.

53868685188520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292320058 (or 292320054 counting only the distinct ones).

The product of its (nonzero) digits is 884736000, while the sum is 73.

The spelling of 53868685188520 in words is "fifty-three trillion, eight hundred sixty-eight billion, six hundred eighty-five million, one hundred eighty-eight thousand, five hundred twenty".