74574573937 has 2 divisors, whose sum is σ = 74574573938. Its totient is φ = 74574573936.

The previous prime is 74574573923. The next prime is 74574573943. The reversal of 74574573937 is 73937547547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73593380961 + 981192976 = 271281^2 + 31324^2 .

It is an emirp because it is prime and its reverse (73937547547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74574573937 - 2⁷ = 74574573809 is a prime.

It is a super-2 number, since 2×74574573937² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74574573907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37287286968 + 37287286969.

It is an arithmetic number, because the mean of its divisors is an integer number (37287286969).

Almost surely, 2^74574573937 is an apocalyptic number.

It is an amenable number.

74574573937 is a deficient number, since it is larger than the sum of its proper divisors (1).

74574573937 is an equidigital number, since it uses as much as digits as its factorization.

74574573937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77792400, while the sum is 61.

The spelling of 74574573937 in words is "seventy-four billion, five hundred seventy-four million, five hundred seventy-three thousand, nine hundred thirty-seven".