642217627482 has 32 divisors (see below), whose sum is σ = 1291665154752. Its totient is φ = 212868547584.

The previous prime is 642217627477. The next prime is 642217627559. The reversal of 642217627482 is 284726712246.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502868 + ... + 2747504.

It is an arithmetic number, because the mean of its divisors is an integer number (40364536086).

Almost surely, 2^642217627482 is an apocalyptic number.

642217627482 is an abundant number, since it is smaller than the sum of its proper divisors (649447527270).

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

642217627482 is a wasteful number, since it uses less digits than its factorization.

642217627482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247102.

The product of its digits is 3612672, while the sum is 51.

The spelling of 642217627482 in words is "six hundred forty-two billion, two hundred seventeen million, six hundred twenty-seven thousand, four hundred eighty-two".