646524232845 has 32 divisors (see below), whose sum is σ = 1035910840320. Its totient is φ = 344322538560.

The previous prime is 646524232831. The next prime is 646524232883. The reversal of 646524232845 is 548232425646.

646524232845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 646524232845 - 2⁵ = 646524232813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42788782 + ... + 42803888.

It is an arithmetic number, because the mean of its divisors is an integer number (32372213760).

Almost surely, 2^646524232845 is an apocalyptic number.

It is an amenable number.

646524232845 is a deficient number, since it is larger than the sum of its proper divisors (389386607475).

646524232845 is a wasteful number, since it uses less digits than its factorization.

646524232845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18985.

The product of its digits is 11059200, while the sum is 51.

The spelling of 646524232845 in words is "six hundred forty-six billion, five hundred twenty-four million, two hundred thirty-two thousand, eight hundred forty-five".