520043345645 has 32 divisors (see below), whose sum is σ = 658278973440. Its totient is φ = 393814221120.

The previous prime is 520043345621. The next prime is 520043345671. The reversal of 520043345645 is 546543340025.

It is not a de Polignac number, because 520043345645 - 2⁸ = 520043345389 is a prime.

It is a super-3 number, since 3×520043345645³ (a number of 36 digits) contains 333 as substring.

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, 12794024 + ... + 12834606.

It is an arithmetic number, because the mean of its divisors is an integer number (20571217920).

Almost surely, 2^520043345645 is an apocalyptic number.

It is an amenable number.

520043345645 is a deficient number, since it is larger than the sum of its proper divisors (138235627795).

520043345645 is a wasteful number, since it uses less digits than its factorization.

520043345645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42425.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 520043345645 in words is "five hundred twenty billion, forty-three million, three hundred forty-five thousand, six hundred forty-five".