845540836723 has 16 divisors (see below), whose sum is σ = 923522616576. Its totient is φ = 767745203040.

The previous prime is 845540836697. The next prime is 845540836741. The reversal of 845540836723 is 327638045548.

845540836723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 845540836723 - 2³³ = 836950902131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845540836783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59358240 + ... + 59372482.

It is an arithmetic number, because the mean of its divisors is an integer number (57720163536).

Almost surely, 2^845540836723 is an apocalyptic number.

845540836723 is a deficient number, since it is larger than the sum of its proper divisors (77981779853).

845540836723 is a wasteful number, since it uses less digits than its factorization.

845540836723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20394.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 845540836723 in words is "eight hundred forty-five billion, five hundred forty million, eight hundred thirty-six thousand, seven hundred twenty-three".