144121867679 has 2 divisors, whose sum is σ = 144121867680. Its totient is φ = 144121867678.

The previous prime is 144121867661. The next prime is 144121867711. The reversal of 144121867679 is 976768121441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144121867679 - 2²⁸ = 143853432223 is a prime.

It is a super-2 number, since 2×144121867679² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144121867639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72060933839 + 72060933840.

It is an arithmetic number, because the mean of its divisors is an integer number (72060933840).

Almost surely, 2^144121867679 is an apocalyptic number.

144121867679 is a deficient number, since it is larger than the sum of its proper divisors (1).

144121867679 is an equidigital number, since it uses as much as digits as its factorization.

144121867679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 56.

The spelling of 144121867679 in words is "one hundred forty-four billion, one hundred twenty-one million, eight hundred sixty-seven thousand, six hundred seventy-nine".