642675577222 has 16 divisors (see below), whose sum is σ = 1102288011552. Its totient is φ = 275292777600.

The previous prime is 642675577213. The next prime is 642675577241. The reversal of 642675577222 is 222775576246.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11605779 + ... + 11661022.

It is an arithmetic number, because the mean of its divisors is an integer number (68893000722).

Almost surely, 2^642675577222 is an apocalyptic number.

642675577222 is a deficient number, since it is larger than the sum of its proper divisors (459612434330).

642675577222 is a wasteful number, since it uses less digits than its factorization.

642675577222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23268783.

The product of its digits is 19756800, while the sum is 55.

The spelling of 642675577222 in words is "six hundred forty-two billion, six hundred seventy-five million, five hundred seventy-seven thousand, two hundred twenty-two".