12578033444 has 24 divisors (see below), whose sum is σ = 22366305528. Its totient is φ = 6188071680.

The previous prime is 12578033443. The next prime is 12578033449. The reversal of 12578033444 is 44433087521.

It can be written as a sum of positive squares in 4 ways, for example, as 889828900 + 11688204544 = 29830^2 + 108112^2 .

It is a super-2 number, since 2×12578033444² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12578033443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 71774 + ... + 174090.

It is an arithmetic number, because the mean of its divisors is an integer number (931929397).

Almost surely, 2^12578033444 is an apocalyptic number.

It is an amenable number.

12578033444 is a deficient number, since it is larger than the sum of its proper divisors (9788272084).

12578033444 is a wasteful number, since it uses less digits than its factorization.

12578033444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102815 (or 102813 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 12578033444 in words is "twelve billion, five hundred seventy-eight million, thirty-three thousand, four hundred forty-four".