63428106506 has 16 divisors (see below), whose sum is σ = 97093873800. Its totient is φ = 31070020608.

The previous prime is 63428106487. The next prime is 63428106517. The reversal of 63428106506 is 60560182436.

It can be written as a sum of positive squares in 4 ways, for example, as 63080843281 + 347263225 = 251159^2 + 18635^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615175 + ... + 1653978.

Almost surely, 2^63428106506 is an apocalyptic number.

63428106506 is a deficient number, since it is larger than the sum of its proper divisors (33665767294).

63428106506 is a wasteful number, since it uses less digits than its factorization.

63428106506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269353.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 63428106506 in words is "sixty-three billion, four hundred twenty-eight million, one hundred six thousand, five hundred six".