144744642071 has 4 divisors (see below), whose sum is σ = 145057265952. Its totient is φ = 144432018192.

The previous prime is 144744642011. The next prime is 144744642089. The reversal of 144744642071 is 170246447441.

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 144744642071 - 2¹⁰ = 144744641047 is a prime.

It is a super-2 number, since 2×144744642071² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144744642011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156311246 + ... + 156312171.

It is an arithmetic number, because the mean of its divisors is an integer number (36264316488).

Almost surely, 2^144744642071 is an apocalyptic number.

144744642071 is a deficient number, since it is larger than the sum of its proper divisors (312623881).

144744642071 is an equidigital number, since it uses as much as digits as its factorization.

144744642071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312623880.

The product of its (nonzero) digits is 602112, while the sum is 44.

The spelling of 144744642071 in words is "one hundred forty-four billion, seven hundred forty-four million, six hundred forty-two thousand, seventy-one".