73144427797871 has 2 divisors, whose sum is σ = 73144427797872. Its totient is φ = 73144427797870.

The previous prime is 73144427797729. The next prime is 73144427797897. The reversal of 73144427797871 is 17879772444137.

It is a strong prime.

It is an emirp because it is prime and its reverse (17879772444137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73144427797871 - 2⁴² = 68746381286767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73144427797795 and 73144427797804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73144421797871) 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 as a sum of consecutive naturals, namely, 36572213898935 + 36572213898936.

It is an arithmetic number, because the mean of its divisors is an integer number (36572213898936).

Almost surely, 2^{73144427797871} is an apocalyptic number.

73144427797871 is a deficient number, since it is larger than the sum of its proper divisors (1).

73144427797871 is an equidigital number, since it uses as much as digits as its factorization.

73144427797871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 464679936, while the sum is 71.

The spelling of 73144427797871 in words is "seventy-three trillion, one hundred forty-four billion, four hundred twenty-seven million, seven hundred ninety-seven thousand, eight hundred seventy-one".