845558139240732 has 24 divisors (see below), whose sum is σ = 2005312745523472. Its totient is φ = 277232176800000.

The previous prime is 845558139240719. The next prime is 845558139240733. The reversal of 845558139240732 is 237042931855548.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845558139240733) by changing a digit.

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, 577567034269 + ... + 577567035732.

Almost surely, 2^{845558139240732} is an apocalyptic number.

It is an amenable number.

845558139240732 is an abundant number, since it is smaller than the sum of its proper divisors (1159754606282740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845558139240732 is a wasteful number, since it uses less digits than its factorization.

845558139240732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155134070069 (or 1155134070067 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 66.

The spelling of 845558139240732 in words is "eight hundred forty-five trillion, five hundred fifty-eight billion, one hundred thirty-nine million, two hundred forty thousand, seven hundred thirty-two".