859818207913 has 16 divisors (see below), whose sum is σ = 1018896449536. Its totient is φ = 710014954320.

The previous prime is 859818207893. The next prime is 859818207947. The reversal of 859818207913 is 319702818958.

It is not a de Polignac number, because 859818207913 - 2¹⁷ = 859818076841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (859818207973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8835681 + ... + 8932462.

It is an arithmetic number, because the mean of its divisors is an integer number (63681028096).

Almost surely, 2^859818207913 is an apocalyptic number.

It is an amenable number.

859818207913 is a deficient number, since it is larger than the sum of its proper divisors (159078241623).

859818207913 is a wasteful number, since it uses less digits than its factorization.

859818207913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17768404.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 859818207913 in words is "eight hundred fifty-nine billion, eight hundred eighteen million, two hundred seven thousand, nine hundred thirteen".