67340733731 has 2 divisors, whose sum is σ = 67340733732. Its totient is φ = 67340733730.

The previous prime is 67340733709. The next prime is 67340733737. The reversal of 67340733731 is 13733704376.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67340733731 is a prime.

It is a super-2 number, since 2×67340733731² (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 (67340733737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33670366865 + 33670366866.

It is an arithmetic number, because the mean of its divisors is an integer number (33670366866).

Almost surely, 2^67340733731 is an apocalyptic number.

67340733731 is a deficient number, since it is larger than the sum of its proper divisors (1).

67340733731 is an equidigital number, since it uses as much as digits as its factorization.

67340733731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 44.

The spelling of 67340733731 in words is "sixty-seven billion, three hundred forty million, seven hundred thirty-three thousand, seven hundred thirty-one".