144476720890 has 16 divisors (see below), whose sum is σ = 261378193032. Its totient is φ = 57497333824.

The previous prime is 144476720849. The next prime is 144476720891. The reversal of 144476720890 is 98027674441.

It can be written as a sum of positive squares in 4 ways, for example, as 134908555401 + 9568165489 = 367299^2 + 97817^2 .

It is not an unprimeable number, because it can be changed into a prime (144476720891) 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 7 ways as a sum of consecutive naturals, for example, 36667249 + ... + 36671188.

Almost surely, 2^144476720890 is an apocalyptic number.

144476720890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144476720890 is a deficient number, since it is larger than the sum of its proper divisors (116901472142).

144476720890 is a wasteful number, since it uses less digits than its factorization.

144476720890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73338641.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 144476720890 in words is "one hundred forty-four billion, four hundred seventy-six million, seven hundred twenty thousand, eight hundred ninety".