642045343282 has 16 divisors (see below), whose sum is σ = 1102837341312. Its totient is φ = 274615244640.

The previous prime is 642045343267. The next prime is 642045343349. The reversal of 642045343282 is 282343540246.

It is a happy number.

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, 45579819 + ... + 45593902.

It is an arithmetic number, because the mean of its divisors is an integer number (68927333832).

Almost surely, 2^642045343282 is an apocalyptic number.

642045343282 is a deficient number, since it is larger than the sum of its proper divisors (460791998030).

642045343282 is a wasteful number, since it uses less digits than its factorization.

642045343282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91174233.

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 642045343282 in words is "six hundred forty-two billion, forty-five million, three hundred forty-three thousand, two hundred eighty-two".