645647024706 has 8 divisors (see below), whose sum is σ = 1291294049424. Its totient is φ = 215215674900.

The previous prime is 645647024689. The next prime is 645647024713. The reversal of 645647024706 is 607420746546.

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

645647024706 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53803918720 + ... + 53803918731.

It is an arithmetic number, because the mean of its divisors is an integer number (161411756178).

Almost surely, 2^645647024706 is an apocalyptic number.

645647024706 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.

645647024706 is a wasteful number, since it uses less digits than its factorization.

645647024706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107607837456.

The product of its (nonzero) digits is 6773760, while the sum is 51.

The spelling of 645647024706 in words is "six hundred forty-five billion, six hundred forty-seven million, twenty-four thousand, seven hundred six".