845501142943 has 4 divisors (see below), whose sum is σ = 845505446688. Its totient is φ = 845496839200.

The previous prime is 845501142929. The next prime is 845501142961. The reversal of 845501142943 is 349241105548.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-845501142943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 845501142893 and 845501142902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845501142443) 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, 1842346 + ... + 2255047.

It is an arithmetic number, because the mean of its divisors is an integer number (211376361672).

Almost surely, 2^845501142943 is an apocalyptic number.

845501142943 is a deficient number, since it is larger than the sum of its proper divisors (4303745).

845501142943 is a wasteful number, since it uses less digits than its factorization.

845501142943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303744.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 845501142943 in words is "eight hundred forty-five billion, five hundred one million, one hundred forty-two thousand, nine hundred forty-three".