63852637952 has 72 divisors (see below), whose sum is σ = 128694736800. Its totient is φ = 31617331200.

The previous prime is 63852637951. The next prime is 63852637969. The reversal of 63852637952 is 25973625836.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63852637951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13488578 + ... + 13493310.

It is an arithmetic number, because the mean of its divisors is an integer number (1787426900).

Almost surely, 2^63852637952 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 63852637952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64347368400).

63852637952 is an abundant number, since it is smaller than the sum of its proper divisors (64842098848).

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

63852637952 is a wasteful number, since it uses less digits than its factorization.

63852637952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249 (or 5235 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 56.

The spelling of 63852637952 in words is "sixty-three billion, eight hundred fifty-two million, six hundred thirty-seven thousand, nine hundred fifty-two".