642548206482 has 64 divisors (see below), whose sum is σ = 1595654242560. Its totient is φ = 167963572224.

The previous prime is 642548206477. The next prime is 642548206501. The reversal of 642548206482 is 284602845246.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5145507 + ... + 5268902.

It is an arithmetic number, because the mean of its divisors is an integer number (24932097540).

Almost surely, 2^642548206482 is an apocalyptic number.

642548206482 is an abundant number, since it is smaller than the sum of its proper divisors (953106036078).

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

642548206482 is a wasteful number, since it uses less digits than its factorization.

642548206482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414547.

The product of its (nonzero) digits is 5898240, while the sum is 51.

The spelling of 642548206482 in words is "six hundred forty-two billion, five hundred forty-eight million, two hundred six thousand, four hundred eighty-two".