812350773547 has 4 divisors (see below), whose sum is σ = 813706952400. Its totient is φ = 810994594696.

The previous prime is 812350773529. The next prime is 812350773673. The reversal of 812350773547 is 745377053218.

812350773547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 812350773547 - 2¹¹ = 812350771499 is a prime.

It is a super-2 number, since 2×812350773547² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 812350773494 and 812350773503.

It is not an unprimeable number, because it can be changed into a prime (812350773947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678088528 + ... + 678089725.

It is an arithmetic number, because the mean of its divisors is an integer number (203426738100).

Almost surely, 2^812350773547 is an apocalyptic number.

812350773547 is a deficient number, since it is larger than the sum of its proper divisors (1356178853).

812350773547 is a wasteful number, since it uses less digits than its factorization.

812350773547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356178852.

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 812350773547 in words is "eight hundred twelve billion, three hundred fifty million, seven hundred seventy-three thousand, five hundred forty-seven".