670851123845 has 16 divisors (see below), whose sum is σ = 920405161728. Its totient is φ = 459821817600.

The previous prime is 670851123793. The next prime is 670851123851. The reversal of 670851123845 is 548321158076.

670851123845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670851123845 - 2⁶ = 670851123781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670851123793 and 670851123802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3880481 + ... + 4049670.

It is an arithmetic number, because the mean of its divisors is an integer number (57525322608).

Almost surely, 2^670851123845 is an apocalyptic number.

It is an amenable number.

670851123845 is a deficient number, since it is larger than the sum of its proper divisors (249554037883).

670851123845 is a wasteful number, since it uses less digits than its factorization.

670851123845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7932580.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 670851123845 in words is "six hundred seventy billion, eight hundred fifty-one million, one hundred twenty-three thousand, eight hundred forty-five".