144400663878 has 64 divisors (see below), whose sum is σ = 299347840512. Its totient is φ = 46414874880.

The previous prime is 144400663877. The next prime is 144400663903. The reversal of 144400663878 is 878366004441.

144400663878 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-3 number, since 3×144400663878³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144400663878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144400663877) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4445725 + ... + 4478087.

It is an arithmetic number, because the mean of its divisors is an integer number (4677310008).

Almost surely, 2^144400663878 is an apocalyptic number.

144400663878 is an abundant number, since it is smaller than the sum of its proper divisors (154947176634).

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

144400663878 is a wasteful number, since it uses less digits than its factorization.

144400663878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32669.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 144400663878 in words is "one hundred forty-four billion, four hundred million, six hundred sixty-three thousand, eight hundred seventy-eight".