869628728418 has 8 divisors (see below), whose sum is σ = 1739257456848. Its totient is φ = 289876242804.

The previous prime is 869628728413. The next prime is 869628728453. The reversal of 869628728418 is 814827826968.

869628728418 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.

869628728418 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (869628728413) 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, 72469060696 + ... + 72469060707.

It is an arithmetic number, because the mean of its divisors is an integer number (217407182106).

Almost surely, 2^869628728418 is an apocalyptic number.

869628728418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869628728418 is a wasteful number, since it uses less digits than its factorization.

869628728418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144938121408.

The product of its digits is 148635648, while the sum is 69.

The spelling of 869628728418 in words is "eight hundred sixty-nine billion, six hundred twenty-eight million, seven hundred twenty-eight thousand, four hundred eighteen".