63443620700512 has 72 divisors (see below), whose sum is σ = 135322703056296. Its totient is φ = 29266311499776.

The previous prime is 63443620700489. The next prime is 63443620700527. The reversal of 63443620700512 is 21500702634436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7237168 + ... + 13388944.

It is an arithmetic number, because the mean of its divisors is an integer number (1879481986893).

Almost surely, 2^{63443620700512} 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 63443620700512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67661351528148).

63443620700512 is an abundant number, since it is smaller than the sum of its proper divisors (71879082355784).

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

63443620700512 is a wasteful number, since it uses less digits than its factorization.

63443620700512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153720 (or 6153699 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 63443620700512 in words is "sixty-three trillion, four hundred forty-three billion, six hundred twenty million, seven hundred thousand, five hundred twelve".