144399999999 has 16 divisors (see below), whose sum is σ = 203886720000. Its totient is φ = 90591523200.

The previous prime is 144399999973. The next prime is 144400000001. The reversal of 144399999999 is 999999993441.

It is a Cunningham number, because it is equal to 380000²-1.

It is not a de Polignac number, because 144399999999 - 2¹² = 144399995903 is a prime.

It is a super-2 number, since 2×144399999999² (a number of 23 digits) contains 22 as substring.

144399999999 is a modest number, since divided by 999999 gives 144399 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144399199999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190002 + ... + 570000.

It is an arithmetic number, because the mean of its divisors is an integer number (12742920000).

Almost surely, 2^144399999999 is an apocalyptic number.

144399999999 is a deficient number, since it is larger than the sum of its proper divisors (59486720001).

144399999999 is a wasteful number, since it uses less digits than its factorization.

144399999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387470.

The product of its digits is 2066242608, while the sum is 84.

The spelling of 144399999999 in words is "one hundred forty-four billion, three hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".