67323107261 has 2 divisors, whose sum is σ = 67323107262. Its totient is φ = 67323107260.

The previous prime is 67323107197. The next prime is 67323107321. The reversal of 67323107261 is 16270132376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55958268025 + 11364839236 = 236555^2 + 106606^2 .

It is a cyclic number.

It is not a de Polignac number, because 67323107261 - 2⁶ = 67323107197 is a prime.

It is a super-2 number, since 2×67323107261² (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 (67323107461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33661553630 + 33661553631.

It is an arithmetic number, because the mean of its divisors is an integer number (33661553631).

Almost surely, 2^67323107261 is an apocalyptic number.

It is an amenable number.

67323107261 is a deficient number, since it is larger than the sum of its proper divisors (1).

67323107261 is an equidigital number, since it uses as much as digits as its factorization.

67323107261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 67323107261 in words is "sixty-seven billion, three hundred twenty-three million, one hundred seven thousand, two hundred sixty-one".