642883106802 has 8 divisors (see below), whose sum is σ = 1285766213616. Its totient is φ = 214294368932.

The previous prime is 642883106779. The next prime is 642883106809. The reversal of 642883106802 is 208601388246.

It is a sphenic number, since it is the product of 3 distinct primes.

642883106802 is an admirable number.

It is a super-2 number, since 2×642883106802² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (642883106809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53573592228 + ... + 53573592239.

It is an arithmetic number, because the mean of its divisors is an integer number (160720776702).

Almost surely, 2^642883106802 is an apocalyptic number.

642883106802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

642883106802 is a wasteful number, since it uses less digits than its factorization.

642883106802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107147184472.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 642883106802 in words is "six hundred forty-two billion, eight hundred eighty-three million, one hundred six thousand, eight hundred two".