67144773432243 has 16 divisors (see below), whose sum is σ = 96413183989920. Its totient is φ = 41319785151744.

The previous prime is 67144773432197. The next prime is 67144773432271. The reversal of 67144773432243 is 34223437744176.

It is not a de Polignac number, because 67144773432243 - 2⁸ = 67144773431987 is a prime.

It is a super-2 number, since 2×67144773432243² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67144773432043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26348455 + ... + 28784207.

It is an arithmetic number, because the mean of its divisors is an integer number (6025823999370).

Almost surely, 2^{67144773432243} is an apocalyptic number.

67144773432243 is a deficient number, since it is larger than the sum of its proper divisors (29268410557677).

67144773432243 is a wasteful number, since it uses less digits than its factorization.

67144773432243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142598.

The product of its digits is 56899584, while the sum is 57.

The spelling of 67144773432243 in words is "sixty-seven trillion, one hundred forty-four billion, seven hundred seventy-three million, four hundred thirty-two thousand, two hundred forty-three".