67530939401 has 2 divisors, whose sum is σ = 67530939402. Its totient is φ = 67530939400.

The previous prime is 67530939397. The next prime is 67530939419. The reversal of 67530939401 is 10493903576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66892063225 + 638876176 = 258635^2 + 25276^2 .

It is a cyclic number.

It is not a de Polignac number, because 67530939401 - 2² = 67530939397 is a prime.

It is not a weakly prime, because it can be changed into another prime (67530939901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33765469700 + 33765469701.

It is an arithmetic number, because the mean of its divisors is an integer number (33765469701).

Almost surely, 2^67530939401 is an apocalyptic number.

It is an amenable number.

67530939401 is a deficient number, since it is larger than the sum of its proper divisors (1).

67530939401 is an equidigital number, since it uses as much as digits as its factorization.

67530939401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 67530939401 in words is "sixty-seven billion, five hundred thirty million, nine hundred thirty-nine thousand, four hundred one".