3451843845873 has 6 divisors (see below), whose sum is σ = 4985996666274. Its totient is φ = 2301229230576.

The previous prime is 3451843845871. The next prime is 3451843845917. The reversal of 3451843845873 is 3785483481543.

It is a happy number.

3451843845873 is a `hidden beast` number, since 3 + 4 + 5 + 1 + 8 + 43 + 8 + 4 + 587 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1988573788224 + 1463270057649 = 1410168^2 + 1209657^2 .

It is not a de Polignac number, because 3451843845873 - 2¹ = 3451843845871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3451843845873.

It is not an unprimeable number, because it can be changed into a prime (3451843845871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191769102540 + ... + 191769102557.

It is an arithmetic number, because the mean of its divisors is an integer number (830999444379).

Almost surely, 2^{3451843845873} is an apocalyptic number.

It is an amenable number.

3451843845873 is a deficient number, since it is larger than the sum of its proper divisors (1534152820401).

3451843845873 is a wasteful number, since it uses less digits than its factorization.

3451843845873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383538205103 (or 383538205100 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 63.

The spelling of 3451843845873 in words is "three trillion, four hundred fifty-one billion, eight hundred forty-three million, eight hundred forty-five thousand, eight hundred seventy-three".