872405000855 has 16 divisors (see below), whose sum is σ = 1056722350464. Its totient is φ = 691367081760.

The previous prime is 872405000851. The next prime is 872405000867. The reversal of 872405000855 is 558000504278.

It is not a de Polignac number, because 872405000855 - 2² = 872405000851 is a prime.

It is a super-2 number, since 2×872405000855² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872405000851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20828564 + ... + 20870406.

It is an arithmetic number, because the mean of its divisors is an integer number (66045146904).

Almost surely, 2^872405000855 is an apocalyptic number.

872405000855 is a deficient number, since it is larger than the sum of its proper divisors (184317349609).

872405000855 is a wasteful number, since it uses less digits than its factorization.

872405000855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80926.

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 872405000855 in words is "eight hundred seventy-two billion, four hundred five million, eight hundred fifty-five", and thus it is an aban number.