74748653593 has 2 divisors, whose sum is σ = 74748653594. Its totient is φ = 74748653592.

The previous prime is 74748653587. The next prime is 74748653633. The reversal of 74748653593 is 39535684747.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73881763344 + 866890249 = 271812^2 + 29443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74748653593 is a prime.

It is a super-2 number, since 2×74748653593² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74748653513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37374326796 + 37374326797.

It is an arithmetic number, because the mean of its divisors is an integer number (37374326797).

Almost surely, 2^74748653593 is an apocalyptic number.

It is an amenable number.

74748653593 is a deficient number, since it is larger than the sum of its proper divisors (1).

74748653593 is an equidigital number, since it uses as much as digits as its factorization.

74748653593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76204800, while the sum is 61.

The spelling of 74748653593 in words is "seventy-four billion, seven hundred forty-eight million, six hundred fifty-three thousand, five hundred ninety-three".