872162666435 has 4 divisors (see below), whose sum is σ = 1046595199728. Its totient is φ = 697730133144.

The previous prime is 872162666363. The next prime is 872162666461. The reversal of 872162666435 is 534666261278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 872162666435 - 2¹⁸ = 872162404291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87216266639 + ... + 87216266648.

It is an arithmetic number, because the mean of its divisors is an integer number (261648799932).

Almost surely, 2^872162666435 is an apocalyptic number.

872162666435 is a deficient number, since it is larger than the sum of its proper divisors (174432533293).

872162666435 is a wasteful number, since it uses less digits than its factorization.

872162666435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174432533292.

The product of its digits is 17418240, while the sum is 56.

The spelling of 872162666435 in words is "eight hundred seventy-two billion, one hundred sixty-two million, six hundred sixty-six thousand, four hundred thirty-five".