144878439656 has 16 divisors (see below), whose sum is σ = 281014215300. Its totient is φ = 69941315584.

The previous prime is 144878439653. The next prime is 144878439661. The reversal of 144878439656 is 656934878441.

It can be written as a sum of positive squares in 2 ways, for example, as 140824570756 + 4053868900 = 375266^2 + 63670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144878439592 and 144878439601.

It is not an unprimeable number, because it can be changed into a prime (144878439653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312237785 + ... + 312238248.

Almost surely, 2^144878439656 is an apocalyptic number.

It is an amenable number.

144878439656 is a deficient number, since it is larger than the sum of its proper divisors (136135775644).

144878439656 is a wasteful number, since it uses less digits than its factorization.

144878439656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624476068 (or 624476064 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 65.

The spelling of 144878439656 in words is "one hundred forty-four billion, eight hundred seventy-eight million, four hundred thirty-nine thousand, six hundred fifty-six".