63535504004 has 36 divisors (see below), whose sum is σ = 127778781312. Its totient is φ = 27078671520.

The previous prime is 63535503947. The next prime is 63535504007. The reversal of 63535504004 is 40040553536.

It is not an unprimeable number, because it can be changed into a prime (63535504007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 882677 + ... + 951939.

It is an arithmetic number, because the mean of its divisors is an integer number (3549410592).

Almost surely, 2^63535504004 is an apocalyptic number.

It is an amenable number.

63535504004 is an abundant number, since it is smaller than the sum of its proper divisors (64243277308).

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

63535504004 is a wasteful number, since it uses less digits than its factorization.

63535504004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69636 (or 69453 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 63535504004 in words is "sixty-three billion, five hundred thirty-five million, five hundred four thousand, four".