12458181844 has 12 divisors (see below), whose sum is σ = 21830472468. Its totient is φ = 6220904000.

The previous prime is 12458181821. The next prime is 12458181913. The reversal of 12458181844 is 44818185421.

It can be written as a sum of positive squares in 2 ways, for example, as 10316944 + 12447864900 = 3212^2 + 111570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12458181794 and 12458181803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043307 + ... + 2049394.

It is an arithmetic number, because the mean of its divisors is an integer number (1819206039).

Almost surely, 2^12458181844 is an apocalyptic number.

It is an amenable number.

12458181844 is a deficient number, since it is larger than the sum of its proper divisors (9372290624).

12458181844 is a wasteful number, since it uses less digits than its factorization.

12458181844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093466 (or 4093464 counting only the distinct ones).

The product of its digits is 327680, while the sum is 46.

It can be divided in two parts, 12 and 458181844, that added together give a triangular number (458181856 = T₃₀₂₇₁).

The spelling of 12458181844 in words is "twelve billion, four hundred fifty-eight million, one hundred eighty-one thousand, eight hundred forty-four".