840675081806 has 32 divisors (see below), whose sum is σ = 1487734284288. Its totient is φ = 348646446720.

The previous prime is 840675081793. The next prime is 840675081833. The reversal of 840675081806 is 608180576048.

It is a Curzon number.

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, 8890331 + ... + 8984393.

It is an arithmetic number, because the mean of its divisors is an integer number (46491696384).

Almost surely, 2^840675081806 is an apocalyptic number.

840675081806 is a deficient number, since it is larger than the sum of its proper divisors (647059202482).

840675081806 is a wasteful number, since it uses less digits than its factorization.

840675081806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114696.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 840675081806 in words is "eight hundred forty billion, six hundred seventy-five million, eighty-one thousand, eight hundred six".