52985723518 has 16 divisors (see below), whose sum is σ = 97819797600. Its totient is φ = 20961385056.

The previous prime is 52985723449. The next prime is 52985723533. The reversal of 52985723518 is 81532758925.

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, 145564993 + ... + 145565356.

It is an arithmetic number, because the mean of its divisors is an integer number (6113737350).

Almost surely, 2^52985723518 is an apocalyptic number.

52985723518 is a deficient number, since it is larger than the sum of its proper divisors (44834074082).

52985723518 is a wasteful number, since it uses less digits than its factorization.

52985723518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291130371.

The product of its digits is 6048000, while the sum is 55.

The spelling of 52985723518 in words is "fifty-two billion, nine hundred eighty-five million, seven hundred twenty-three thousand, five hundred eighteen".