845690799929 has 4 divisors (see below), whose sum is σ = 846733576080. Its totient is φ = 844648023780.

The previous prime is 845690799923. The next prime is 845690799949. The reversal of 845690799929 is 929997096548.

845690799929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 845690799929 - 2¹⁶ = 845690734393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845690799929.

It is not an unprimeable number, because it can be changed into a prime (845690799923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521386859 + ... + 521388480.

It is an arithmetic number, because the mean of its divisors is an integer number (211683394020).

Almost surely, 2^845690799929 is an apocalyptic number.

It is an amenable number.

845690799929 is a deficient number, since it is larger than the sum of its proper divisors (1042776151).

845690799929 is a wasteful number, since it uses less digits than its factorization.

845690799929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042776150.

The product of its (nonzero) digits is 793618560, while the sum is 77.

The spelling of 845690799929 in words is "eight hundred forty-five billion, six hundred ninety million, seven hundred ninety-nine thousand, nine hundred twenty-nine".