144047979893 has 2 divisors, whose sum is σ = 144047979894. Its totient is φ = 144047979892.

The previous prime is 144047979869. The next prime is 144047979919. The reversal of 144047979893 is 398979740441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132479256529 + 11568723364 = 363977^2 + 107558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144047979893 is a prime.

It is a super-2 number, since 2×144047979893² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144047979833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72023989946 + 72023989947.

It is an arithmetic number, because the mean of its divisors is an integer number (72023989947).

Almost surely, 2^144047979893 is an apocalyptic number.

It is an amenable number.

144047979893 is a deficient number, since it is larger than the sum of its proper divisors (1).

144047979893 is an equidigital number, since it uses as much as digits as its factorization.

144047979893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 144047979893 in words is "one hundred forty-four billion, forty-seven million, nine hundred seventy-nine thousand, eight hundred ninety-three".