67294956749 has 2 divisors, whose sum is σ = 67294956750. Its totient is φ = 67294956748.

The previous prime is 67294956737. The next prime is 67294956809. The reversal of 67294956749 is 94765949276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42319895524 + 24975061225 = 205718^2 + 158035^2 .

It is a cyclic number.

It is not a de Polignac number, because 67294956749 - 2²⁰ = 67293908173 is a prime.

It is a super-2 number, since 2×67294956749² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67294952749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33647478374 + 33647478375.

It is an arithmetic number, because the mean of its divisors is an integer number (33647478375).

Almost surely, 2^67294956749 is an apocalyptic number.

It is an amenable number.

67294956749 is a deficient number, since it is larger than the sum of its proper divisors (1).

67294956749 is an equidigital number, since it uses as much as digits as its factorization.

67294956749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205752960, while the sum is 68.

The spelling of 67294956749 in words is "sixty-seven billion, two hundred ninety-four million, nine hundred fifty-six thousand, seven hundred forty-nine".