872820476813 has 8 divisors (see below), whose sum is σ = 924680048832. Its totient is φ = 821018370496.

The previous prime is 872820476791. The next prime is 872820476837. The reversal of 872820476813 is 318674028278.

872820476813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 872820476813 - 2¹⁴ = 872820460429 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 (872820470813) 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, 14335145 + ... + 14395902.

It is an arithmetic number, because the mean of its divisors is an integer number (115585006104).

Almost surely, 2^872820476813 is an apocalyptic number.

It is an amenable number.

872820476813 is a deficient number, since it is larger than the sum of its proper divisors (51859572019).

872820476813 is a wasteful number, since it uses less digits than its factorization.

872820476813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28732851.

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 872820476813 in words is "eight hundred seventy-two billion, eight hundred twenty million, four hundred seventy-six thousand, eight hundred thirteen".