642204453336 has 16 divisors (see below), whose sum is σ = 1605511133400. Its totient is φ = 214068151104.

The previous prime is 642204453323. The next prime is 642204453349. The reversal of 642204453336 is 633354402246.

It is an interprime number because it is at equal distance from previous prime (642204453323) and next prime (642204453349).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13379259421 + ... + 13379259468.

Almost surely, 2^642204453336 is an apocalyptic number.

It is an amenable number.

642204453336 is an abundant number, since it is smaller than the sum of its proper divisors (963306680064).

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

642204453336 is a wasteful number, since it uses less digits than its factorization.

642204453336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26758518898 (or 26758518894 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 42.

The spelling of 642204453336 in words is "six hundred forty-two billion, two hundred four million, four hundred fifty-three thousand, three hundred thirty-six".