87044766123 has 16 divisors (see below), whose sum is σ = 132671714816. Its totient is φ = 49727839680.

The previous prime is 87044766041. The next prime is 87044766163. The reversal of 87044766123 is 32166744078.

It is a happy number.

It is not a de Polignac number, because 87044766123 - 2¹⁰ = 87044765099 is a prime.

It is a super-2 number, since 2×87044766123² (a number of 23 digits) contains 22 as substring.

It is the 295034-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87044766163) by changing a digit.

It is a nontrivial repunit in base 295033.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411823 + ... + 586248.

It is an arithmetic number, because the mean of its divisors is an integer number (8291982176).

Almost surely, 2^87044766123 is an apocalyptic number.

87044766123 is a deficient number, since it is larger than the sum of its proper divisors (45626948693).

87044766123 is a wasteful number, since it uses less digits than its factorization.

87044766123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002234.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 87044766123 in words is "eighty-seven billion, forty-four million, seven hundred sixty-six thousand, one hundred twenty-three".