872187352680665 has 8 divisors (see below), whose sum is σ = 1196142655104960. Its totient is φ = 598071327552432.

The previous prime is 872187352680649. The next prime is 872187352680713. The reversal of 872187352680665 is 566086253781278.

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 872187352680665 - 2⁴ = 872187352680649 is a prime.

It is a super-2 number, since 2×872187352680665² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872187352680592 and 872187352680601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12459819323975 + ... + 12459819324044.

It is an arithmetic number, because the mean of its divisors is an integer number (149517831888120).

Almost surely, 2^{872187352680665} is an apocalyptic number.

It is an amenable number.

872187352680665 is a deficient number, since it is larger than the sum of its proper divisors (323955302424295).

872187352680665 is a wasteful number, since it uses less digits than its factorization.

872187352680665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24919638648031.

The product of its (nonzero) digits is 1625702400, while the sum is 74.

The spelling of 872187352680665 in words is "eight hundred seventy-two trillion, one hundred eighty-seven billion, three hundred fifty-two million, six hundred eighty thousand, six hundred sixty-five".