74536564507 has 2 divisors, whose sum is σ = 74536564508. Its totient is φ = 74536564506.

The previous prime is 74536564499. The next prime is 74536564519. The reversal of 74536564507 is 70546563547.

It is a weak prime.

It is an emirp because it is prime and its reverse (70546563547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74536564507 - 2³ = 74536564499 is a prime.

It is not a weakly prime, because it can be changed into another prime (74536565507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37268282253 + 37268282254.

It is an arithmetic number, because the mean of its divisors is an integer number (37268282254).

Almost surely, 2^74536564507 is an apocalyptic number.

74536564507 is a deficient number, since it is larger than the sum of its proper divisors (1).

74536564507 is an equidigital number, since it uses as much as digits as its factorization.

74536564507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 52.

The spelling of 74536564507 in words is "seventy-four billion, five hundred thirty-six million, five hundred sixty-four thousand, five hundred seven".