818376124489 has 32 divisors (see below), whose sum is σ = 1058782464000. Its totient is φ = 626887109520.

The previous prime is 818376124487. The next prime is 818376124507. The reversal of 818376124489 is 984421673818.

It is not a de Polignac number, because 818376124489 - 2¹ = 818376124487 is a prime.

It is a super-2 number, since 2×818376124489² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818376124483) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1615557 + ... + 2060770.

It is an arithmetic number, because the mean of its divisors is an integer number (33086952000).

Almost surely, 2^818376124489 is an apocalyptic number.

It is an amenable number.

818376124489 is a deficient number, since it is larger than the sum of its proper divisors (240406339511).

818376124489 is a wasteful number, since it uses less digits than its factorization.

818376124489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676418 (or 3676404 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The spelling of 818376124489 in words is "eight hundred eighteen billion, three hundred seventy-six million, one hundred twenty-four thousand, four hundred eighty-nine".