645224773058 has 16 divisors (see below), whose sum is σ = 1019154424320. Its totient is φ = 305519247216.

The previous prime is 645224773009. The next prime is 645224773091. The reversal of 645224773058 is 850377422546.

It is a super-3 number, since 3×645224773058³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3050210 + ... + 3254877.

It is an arithmetic number, because the mean of its divisors is an integer number (63697151520).

Almost surely, 2^645224773058 is an apocalyptic number.

645224773058 is a deficient number, since it is larger than the sum of its proper divisors (373929651262).

645224773058 is a wasteful number, since it uses less digits than its factorization.

645224773058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307801.

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 645224773058 in words is "six hundred forty-five billion, two hundred twenty-four million, seven hundred seventy-three thousand, fifty-eight".