812327616029 has 4 divisors (see below), whose sum is σ = 822610244160. Its totient is φ = 802044987900.

The previous prime is 812327615999. The next prime is 812327616031. The reversal of 812327616029 is 920616723218.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812327616029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812327616929) 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, 5141313947 + ... + 5141314104.

It is an arithmetic number, because the mean of its divisors is an integer number (205652561040).

Almost surely, 2^812327616029 is an apocalyptic number.

It is an amenable number.

812327616029 is a deficient number, since it is larger than the sum of its proper divisors (10282628131).

812327616029 is a wasteful number, since it uses less digits than its factorization.

812327616029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10282628130.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 812327616029 in words is "eight hundred twelve billion, three hundred twenty-seven million, six hundred sixteen thousand, twenty-nine".