74367169949 has 2 divisors, whose sum is σ = 74367169950. Its totient is φ = 74367169948.

The previous prime is 74367169873. The next prime is 74367169957. The reversal of 74367169949 is 94996176347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45579261049 + 28787908900 = 213493^2 + 169670^2 .

It is a cyclic number.

It is not a de Polignac number, because 74367169949 - 2⁸ = 74367169693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74367169969) 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, 37183584974 + 37183584975.

It is an arithmetic number, because the mean of its divisors is an integer number (37183584975).

Almost surely, 2^74367169949 is an apocalyptic number.

It is an amenable number.

74367169949 is a deficient number, since it is larger than the sum of its proper divisors (1).

74367169949 is an equidigital number, since it uses as much as digits as its factorization.

74367169949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 65.

The spelling of 74367169949 in words is "seventy-four billion, three hundred sixty-seven million, one hundred sixty-nine thousand, nine hundred forty-nine".