845285606504 has 8 divisors (see below), whose sum is σ = 1584910512210. Its totient is φ = 422642803248.

The previous prime is 845285606497. The next prime is 845285606549. The reversal of 845285606504 is 405606582548.

It can be written as a sum of positive squares in only one way, i.e., 788369961604 + 56915644900 = 887902^2 + 238570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×845285606504³ (a number of 37 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 52830350399 + ... + 52830350414.

Almost surely, 2^845285606504 is an apocalyptic number.

It is an amenable number.

845285606504 is a deficient number, since it is larger than the sum of its proper divisors (739624905706).

845285606504 is a wasteful number, since it uses less digits than its factorization.

845285606504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105660700819 (or 105660700815 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 845285606504 in words is "eight hundred forty-five billion, two hundred eighty-five million, six hundred six thousand, five hundred four".