144776428644 has 48 divisors (see below), whose sum is σ = 342169667840. Its totient is φ = 47639508480.

The previous prime is 144776428639. The next prime is 144776428663. The reversal of 144776428644 is 446824677441.

It is a happy number.

144776428644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×144776428644² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 150252 + ... + 558684.

Almost surely, 2^144776428644 is an apocalyptic number.

It is an amenable number.

144776428644 is an abundant number, since it is smaller than the sum of its proper divisors (197393239196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144776428644 is a wasteful number, since it uses less digits than its factorization.

144776428644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408820 (or 408818 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 57.

The spelling of 144776428644 in words is "one hundred forty-four billion, seven hundred seventy-six million, four hundred twenty-eight thousand, six hundred forty-four".