812464654773 has 4 divisors (see below), whose sum is σ = 1083286206368. Its totient is φ = 541643103180.

The previous prime is 812464654769. The next prime is 812464654811. The reversal of 812464654773 is 377456464218.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 812464654773 - 2² = 812464654769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812464604773) 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, 135410775793 + ... + 135410775798.

It is an arithmetic number, because the mean of its divisors is an integer number (270821551592).

Almost surely, 2^812464654773 is an apocalyptic number.

It is an amenable number.

812464654773 is a deficient number, since it is larger than the sum of its proper divisors (270821551595).

812464654773 is a wasteful number, since it uses less digits than its factorization.

812464654773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270821551594.

The product of its digits is 27095040, while the sum is 57.

The spelling of 812464654773 in words is "eight hundred twelve billion, four hundred sixty-four million, six hundred fifty-four thousand, seven hundred seventy-three".