63534637764040 has 32 divisors (see below), whose sum is σ = 144044178759360. Its totient is φ = 25219856209600.

The previous prime is 63534637764029. The next prime is 63534637764047. The reversal of 63534637764040 is 4046773643536.

It is not an unprimeable number, because it can be changed into a prime (63534637764047) 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, 6062460196 + ... + 6062470675.

It is an arithmetic number, because the mean of its divisors is an integer number (4501380586230).

Almost surely, 2^{63534637764040} is an apocalyptic number.

It is an amenable number.

63534637764040 is an abundant number, since it is smaller than the sum of its proper divisors (80509540995320).

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

63534637764040 is a wasteful number, since it uses less digits than its factorization.

63534637764040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124931013 (or 12124931009 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 58.

The spelling of 63534637764040 in words is "sixty-three trillion, five hundred thirty-four billion, six hundred thirty-seven million, seven hundred sixty-four thousand, forty".