67281253043 has 2 divisors, whose sum is σ = 67281253044. Its totient is φ = 67281253042.

The previous prime is 67281253009. The next prime is 67281253087. The reversal of 67281253043 is 34035218276.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67281253043 is a prime.

It is a super-2 number, since 2×67281253043² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (67281253643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33640626521 + 33640626522.

It is an arithmetic number, because the mean of its divisors is an integer number (33640626522).

Almost surely, 2^67281253043 is an apocalyptic number.

67281253043 is a deficient number, since it is larger than the sum of its proper divisors (1).

67281253043 is an equidigital number, since it uses as much as digits as its factorization.

67281253043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 67281253043 in words is "sixty-seven billion, two hundred eighty-one million, two hundred fifty-three thousand, forty-three".