144396405864 has 64 divisors (see below), whose sum is σ = 408669105600. Its totient is φ = 47223978048.

The previous prime is 144396405863. The next prime is 144396405883. The reversal of 144396405864 is 468504693441.

144396405864 is a `hidden beast` number, since 1 + 443 + 96 + 4 + 0 + 58 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 144396405864.

It is not an unprimeable number, because it can be changed into a prime (144396405863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6295174 + ... + 6318069.

It is an arithmetic number, because the mean of its divisors is an integer number (6385454775).

Almost surely, 2^144396405864 is an apocalyptic number.

It is an amenable number.

144396405864 is an abundant number, since it is smaller than the sum of its proper divisors (264272699736).

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

144396405864 is a wasteful number, since it uses less digits than its factorization.

144396405864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12613311 (or 12613301 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 144396405864 in words is "one hundred forty-four billion, three hundred ninety-six million, four hundred five thousand, eight hundred sixty-four".