53189985865380 has 576 divisors, whose sum is σ = 187123828469760. Its totient is φ = 11189496536064.

The previous prime is 53189985865361. The next prime is 53189985865397. The reversal of 53189985865380 is 8356858998135.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 53189985865296 and 53189985865305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 25535277819 + ... + 25535279901.

It is an arithmetic number, because the mean of its divisors is an integer number (324867757760).

Almost surely, 2^{53189985865380} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53189985865380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93561914234880).

53189985865380 is an abundant number, since it is smaller than the sum of its proper divisors (133933842604380).

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

53189985865380 is a wasteful number, since it uses less digits than its factorization.

53189985865380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 2239488000, while the sum is 78.

The spelling of 53189985865380 in words is "fifty-three trillion, one hundred eighty-nine billion, nine hundred eighty-five million, eight hundred sixty-five thousand, three hundred eighty".