63537922973536 has 96 divisors (see below), whose sum is σ = 139021565155200. Its totient is φ = 28340933806080.

The previous prime is 63537922973471. The next prime is 63537922973561.

63537922973536 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8975320 + ... + 14409448.

It is an arithmetic number, because the mean of its divisors is an integer number (1448141303700).

Almost surely, 2^{63537922973536} 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 63537922973536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69510782577600).

63537922973536 is an abundant number, since it is smaller than the sum of its proper divisors (75483642181664).

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

63537922973536 is a wasteful number, since it uses less digits than its factorization.

63537922973536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434772 (or 5434764 counting only the distinct ones).

The product of its digits is 1157360400, while the sum is 70.

The spelling of 63537922973536 in words is "sixty-three trillion, five hundred thirty-seven billion, nine hundred twenty-two million, nine hundred seventy-three thousand, five hundred thirty-six".