645425020622 has 8 divisors (see below), whose sum is σ = 968153487672. Its totient is φ = 322707191400.

The previous prime is 645425020607. The next prime is 645425020627. The reversal of 645425020622 is 226020524546.

645425020622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645425020627) 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, 2506004 + ... + 2751527.

It is an arithmetic number, because the mean of its divisors is an integer number (121019185959).

Almost surely, 2^645425020622 is an apocalyptic number.

645425020622 is a deficient number, since it is larger than the sum of its proper divisors (322728467050).

645425020622 is a wasteful number, since it uses less digits than its factorization.

645425020622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318914.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 645425020622 in words is "six hundred forty-five billion, four hundred twenty-five million, twenty thousand, six hundred twenty-two".