812628178601 has 8 divisors (see below), whose sum is σ = 830403537600. Its totient is φ = 795042930672.

The previous prime is 812628178589. The next prime is 812628178627. The reversal of 812628178601 is 106871826218.

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 812628178601 - 2³⁴ = 795448309417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 812628178601.

It is not an unprimeable number, because it can be changed into a prime (812628178631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47519126 + ... + 47536223.

It is an arithmetic number, because the mean of its divisors is an integer number (103800442200).

Almost surely, 2^812628178601 is an apocalyptic number.

It is an amenable number.

812628178601 is a deficient number, since it is larger than the sum of its proper divisors (17775358999).

812628178601 is a wasteful number, since it uses less digits than its factorization.

812628178601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95055535.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 812628178601 in words is "eight hundred twelve billion, six hundred twenty-eight million, one hundred seventy-eight thousand, six hundred one".