812147410073 has 8 divisors (see below), whose sum is σ = 814359991368. Its totient is φ = 809935017984.

The previous prime is 812147410069. The next prime is 812147410079. The reversal of 812147410073 is 370014741218.

It can be written as a sum of positive squares in 4 ways, for example, as 218096472064 + 594050938009 = 467008^2 + 770747^2 .

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 812147410073 - 2² = 812147410069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812147410079) 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, 15115865 + ... + 15169497.

It is an arithmetic number, because the mean of its divisors is an integer number (101794998921).

Almost surely, 2^812147410073 is an apocalyptic number.

It is an amenable number.

812147410073 is a deficient number, since it is larger than the sum of its proper divisors (2212581295).

812147410073 is a wasteful number, since it uses less digits than its factorization.

812147410073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94603.

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 812147410073 in words is "eight hundred twelve billion, one hundred forty-seven million, four hundred ten thousand, seventy-three".