52643021146440 has 64 divisors (see below), whose sum is σ = 157981689999360. Its totient is φ = 14033461056000.

The previous prime is 52643021146439. The next prime is 52643021146493. The reversal of 52643021146440 is 4464112034625.

It is a junction number, because it is equal to n+sod(n) for n = 52643021146392 and 52643021146401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72730824 + ... + 73451063.

It is an arithmetic number, because the mean of its divisors is an integer number (2468463906240).

Almost surely, 2^{52643021146440} is an apocalyptic number.

It is an amenable number.

52643021146440 is an abundant number, since it is smaller than the sum of its proper divisors (105338668852920).

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

52643021146440 is a wasteful number, since it uses less digits than its factorization.

52643021146440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146184902 (or 146184898 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 52643021146440 in words is "fifty-two trillion, six hundred forty-three billion, twenty-one million, one hundred forty-six thousand, four hundred forty".