144697763479 has 4 divisors (see below), whose sum is σ = 149687341560. Its totient is φ = 139708185400.

The previous prime is 144697763477. The next prime is 144697763491. The reversal of 144697763479 is 974367796441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144697763479 - 2¹ = 144697763477 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144697763477) 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 3 ways as a sum of consecutive naturals, for example, 2494788997 + ... + 2494789054.

It is an arithmetic number, because the mean of its divisors is an integer number (37421835390).

Almost surely, 2^144697763479 is an apocalyptic number.

144697763479 is a deficient number, since it is larger than the sum of its proper divisors (4989578081).

144697763479 is an equidigital number, since it uses as much as digits as its factorization.

144697763479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989578080.

The product of its digits is 192036096, while the sum is 67.

The spelling of 144697763479 in words is "one hundred forty-four billion, six hundred ninety-seven million, seven hundred sixty-three thousand, four hundred seventy-nine".