816912574273 has 8 divisors (see below), whose sum is σ = 818193206376. Its totient is φ = 815632272000.

The previous prime is 816912574267. The next prime is 816912574301. The reversal of 816912574273 is 372475219618.

816912574273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 98515632384 + 718396941889 = 313872^2 + 847583^2 .

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 816912574273 - 2¹⁷ = 816912443201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816912574873) 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, 5132143 + ... + 5288923.

It is an arithmetic number, because the mean of its divisors is an integer number (102274150797).

Almost surely, 2^816912574273 is an apocalyptic number.

It is an amenable number.

816912574273 is a deficient number, since it is larger than the sum of its proper divisors (1280632103).

816912574273 is a wasteful number, since it uses less digits than its factorization.

816912574273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164915.

The product of its digits is 5080320, while the sum is 55.

The spelling of 816912574273 in words is "eight hundred sixteen billion, nine hundred twelve million, five hundred seventy-four thousand, two hundred seventy-three".