812242545242218 has 32 divisors (see below), whose sum is σ = 1284852324792960. Its totient is φ = 384510358639680.

The previous prime is 812242545242173. The next prime is 812242545242221.

812242545242218 is nontrivially palindromic in base 10.

812242545242218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 65851788 + ... + 77207143.

It is an arithmetic number, because the mean of its divisors is an integer number (40151635149780).

Almost surely, 2^{812242545242218} is an apocalyptic number.

812242545242218 is a deficient number, since it is larger than the sum of its proper divisors (472609779550742).

812242545242218 is a wasteful number, since it uses less digits than its factorization.

812242545242218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143060862.

The product of its digits is 6553600, while the sum is 52.

The spelling of 812242545242218 in words is "eight hundred twelve trillion, two hundred forty-two billion, five hundred forty-five million, two hundred forty-two thousand, two hundred eighteen".