67527604321 has 2 divisors, whose sum is σ = 67527604322. Its totient is φ = 67527604320.

The previous prime is 67527604301. The next prime is 67527604373. The reversal of 67527604321 is 12340672576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63787058721 + 3740545600 = 252561^2 + 61160^2 .

It is a cyclic number.

It is not a de Polignac number, because 67527604321 - 2³⁵ = 33167865953 is a prime.

It is not a weakly prime, because it can be changed into another prime (67527604301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33763802160 + 33763802161.

It is an arithmetic number, because the mean of its divisors is an integer number (33763802161).

Almost surely, 2^67527604321 is an apocalyptic number.

It is an amenable number.

67527604321 is a deficient number, since it is larger than the sum of its proper divisors (1).

67527604321 is an equidigital number, since it uses as much as digits as its factorization.

67527604321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 67527604321 in words is "sixty-seven billion, five hundred twenty-seven million, six hundred four thousand, three hundred twenty-one".