845690799928 has 32 divisors (see below), whose sum is σ = 1723311374400. Its totient is φ = 386737918848.

The previous prime is 845690799923. The next prime is 845690799949. The reversal of 845690799928 is 829997096548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845690799923) 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, 37289776 + ... + 37312447.

It is an arithmetic number, because the mean of its divisors is an integer number (53853480450).

Almost surely, 2^845690799928 is an apocalyptic number.

It is an amenable number.

845690799928 is an abundant number, since it is smaller than the sum of its proper divisors (877620574472).

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

845690799928 is a wasteful number, since it uses less digits than its factorization.

845690799928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74602351 (or 74602347 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 76.

The spelling of 845690799928 in words is "eight hundred forty-five billion, six hundred ninety million, seven hundred ninety-nine thousand, nine hundred twenty-eight".