812992265273 has 8 divisors (see below), whose sum is σ = 813462003048. Its totient is φ = 812522617344.

The previous prime is 812992265227. The next prime is 812992265279. The reversal of 812992265273 is 372562299218.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 222512210944 + 590480054329 = 471712^2 + 768427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 812992265273 - 2⁸ = 812992265017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812992265279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26804765 + ... + 26835077.

It is an arithmetic number, because the mean of its divisors is an integer number (101682750381).

Almost surely, 2^812992265273 is an apocalyptic number.

It is an amenable number.

812992265273 is a deficient number, since it is larger than the sum of its proper divisors (469737775).

812992265273 is a wasteful number, since it uses less digits than its factorization.

812992265273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44923.

The product of its digits is 6531840, while the sum is 56.

The spelling of 812992265273 in words is "eight hundred twelve billion, nine hundred ninety-two million, two hundred sixty-five thousand, two hundred seventy-three".