74688325091 has 2 divisors, whose sum is σ = 74688325092. Its totient is φ = 74688325090.

The previous prime is 74688325087. The next prime is 74688325133. The reversal of 74688325091 is 19052388647.

It is a weak prime.

It is an emirp because it is prime and its reverse (19052388647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74688325091 - 2² = 74688325087 is a prime.

It is not a weakly prime, because it can be changed into another prime (74688325001) 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, 37344162545 + 37344162546.

It is an arithmetic number, because the mean of its divisors is an integer number (37344162546).

It is a 2-persistent number, because it is pandigital, and so is 2⋅74688325091 = 149376650182, but 3⋅74688325091 = 224064975273 is not.

Almost surely, 2^74688325091 is an apocalyptic number.

74688325091 is a deficient number, since it is larger than the sum of its proper divisors (1).

74688325091 is an equidigital number, since it uses as much as digits as its factorization.

74688325091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 74688325091 in words is "seventy-four billion, six hundred eighty-eight million, three hundred twenty-five thousand, ninety-one".