5263642121052 has 96 divisors (see below), whose sum is σ = 14303172989952. Its totient is φ = 1475320444416.

The previous prime is 5263642121021. The next prime is 5263642121077. The reversal of 5263642121052 is 2501212463625.

It is a self number, because there is not a number n which added to its sum of digits gives 5263642121052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34083153 + ... + 34237239.

It is an arithmetic number, because the mean of its divisors is an integer number (148991385312).

Almost surely, 2^{5263642121052} 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 5263642121052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7151586494976).

5263642121052 is an abundant number, since it is smaller than the sum of its proper divisors (9039530868900).

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

5263642121052 is a wasteful number, since it uses less digits than its factorization.

5263642121052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161827 (or 161825 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 5263642121052 its reverse (2501212463625), we get a palindrome (7764854584677).

The spelling of 5263642121052 in words is "five trillion, two hundred sixty-three billion, six hundred forty-two million, one hundred twenty-one thousand, fifty-two".