812464628485111 has 16 divisors (see below), whose sum is σ = 931077800699904. Its totient is φ = 694488385818144.

The previous prime is 812464628485043. The next prime is 812464628485141. The reversal of 812464628485111 is 111584826464218.

It is a cyclic number.

It is not a de Polignac number, because 812464628485111 - 2⁴⁷ = 671727140129783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 812464628485111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812464628485141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32767860 + ... + 51948646.

It is an arithmetic number, because the mean of its divisors is an integer number (58192362543744).

Almost surely, 2^{812464628485111} is an apocalyptic number.

812464628485111 is a deficient number, since it is larger than the sum of its proper divisors (118613172214793).

812464628485111 is a wasteful number, since it uses less digits than its factorization.

812464628485111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19197390.

The product of its digits is 23592960, while the sum is 61.

The spelling of 812464628485111 in words is "eight hundred twelve trillion, four hundred sixty-four billion, six hundred twenty-eight million, four hundred eighty-five thousand, one hundred eleven".