52185352018868 has 12 divisors (see below), whose sum is σ = 91541288520612. Its totient is φ = 26030698155840.

The previous prime is 52185352018861. The next prime is 52185352018909. The reversal of 52185352018868 is 86881025358125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13056674013604 + 39128678005264 = 3613402^2 + 6255292^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52185352018868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52185352018861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15494461505 + ... + 15494464872.

It is an arithmetic number, because the mean of its divisors is an integer number (7628440710051).

Almost surely, 2^{52185352018868} is an apocalyptic number.

It is an amenable number.

52185352018868 is a deficient number, since it is larger than the sum of its proper divisors (39355936501744).

52185352018868 is a wasteful number, since it uses less digits than its factorization.

52185352018868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30988926802 (or 30988926800 counting only the distinct ones).

The product of its (nonzero) digits is 36864000, while the sum is 62.

The spelling of 52185352018868 in words is "fifty-two trillion, one hundred eighty-five billion, three hundred fifty-two million, eighteen thousand, eight hundred sixty-eight".