52153567781768 has 16 divisors (see below), whose sum is σ = 97792743547980. Its totient is φ = 26075502835648.

The previous prime is 52153567781747. The next prime is 52153567781779. The reversal of 52153567781768 is 86718776535125.

It can be written as a sum of positive squares in 2 ways, for example, as 50327929031524 + 1825638750244 = 7094218^2 + 1351162^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159958871 + ... + 160284582.

Almost surely, 2^{52153567781768} is an apocalyptic number.

It is an amenable number.

52153567781768 is a deficient number, since it is larger than the sum of its proper divisors (45639175766212).

52153567781768 is a wasteful number, since it uses less digits than its factorization.

52153567781768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320263816 (or 320263812 counting only the distinct ones).

The product of its digits is 592704000, while the sum is 71.

The spelling of 52153567781768 in words is "fifty-two trillion, one hundred fifty-three billion, five hundred sixty-seven million, seven hundred eighty-one thousand, seven hundred sixty-eight".