144405424454 has 16 divisors (see below), whose sum is σ = 217412315568. Its totient is φ = 71934800352.

The previous prime is 144405424447. The next prime is 144405424487. The reversal of 144405424454 is 454424504441.

It is a happy number.

It is a super-2 number, since 2×144405424454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025929 + ... + 2095995.

It is an arithmetic number, because the mean of its divisors is an integer number (13588269723).

Almost surely, 2^144405424454 is an apocalyptic number.

144405424454 is a deficient number, since it is larger than the sum of its proper divisors (73006891114).

144405424454 is a wasteful number, since it uses less digits than its factorization.

144405424454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73879.

The product of its (nonzero) digits is 819200, while the sum is 41.

Adding to 144405424454 its reverse (454424504441), we get a palindrome (598829928895).

The spelling of 144405424454 in words is "one hundred forty-four billion, four hundred five million, four hundred twenty-four thousand, four hundred fifty-four".