642025827016 has 64 divisors (see below), whose sum is σ = 1441910522880. Its totient is φ = 262031161920.

The previous prime is 642025827011. The next prime is 642025827017. The reversal of 642025827016 is 610728520246.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (642025827011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805570 + ... + 1390321.

It is an arithmetic number, because the mean of its divisors is an integer number (22529851920).

Almost surely, 2^642025827016 is an apocalyptic number.

It is an amenable number.

642025827016 is an abundant number, since it is smaller than the sum of its proper divisors (799884695864).

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

642025827016 is a wasteful number, since it uses less digits than its factorization.

642025827016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196154 (or 2196150 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 642025827016 in words is "six hundred forty-two billion, twenty-five million, eight hundred twenty-seven thousand, sixteen".