872428867321 has 8 divisors (see below), whose sum is σ = 952250374944. Its totient is φ = 792692325120.

The previous prime is 872428867313. The next prime is 872428867337. The reversal of 872428867321 is 123768824278.

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 872428867321 - 2³ = 872428867313 is a prime.

It is a super-2 number, since 2×872428867321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872428867381) 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, 21219880 + ... + 21260953.

It is an arithmetic number, because the mean of its divisors is an integer number (119031296868).

Almost surely, 2^872428867321 is an apocalyptic number.

It is an amenable number.

872428867321 is a deficient number, since it is larger than the sum of its proper divisors (79821507623).

872428867321 is a wasteful number, since it uses less digits than its factorization.

872428867321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42482711.

The product of its digits is 14450688, while the sum is 58.

The spelling of 872428867321 in words is "eight hundred seventy-two billion, four hundred twenty-eight million, eight hundred sixty-seven thousand, three hundred twenty-one".