63284520642 has 32 divisors (see below), whose sum is σ = 144727824384. Its totient is φ = 18071605200.

The previous prime is 63284520623. The next prime is 63284520643. The reversal of 63284520642 is 24602548236.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 63284520594 and 63284520603.

It is not an unprimeable number, because it can be changed into a prime (63284520643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324084 + ... + 481247.

It is an arithmetic number, because the mean of its divisors is an integer number (4522744512).

Almost surely, 2^63284520642 is an apocalyptic number.

63284520642 is an abundant number, since it is smaller than the sum of its proper divisors (81443303742).

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

63284520642 is a wasteful number, since it uses less digits than its factorization.

63284520642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807214.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 63284520642 in words is "sixty-three billion, two hundred eighty-four million, five hundred twenty thousand, six hundred forty-two".