74467874681 has 2 divisors, whose sum is σ = 74467874682. Its totient is φ = 74467874680.

The previous prime is 74467874671. The next prime is 74467874737. The reversal of 74467874681 is 18647876447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73657960000 + 809914681 = 271400^2 + 28459^2 .

It is a cyclic number.

It is not a de Polignac number, because 74467874681 - 2¹⁰ = 74467873657 is a prime.

It is a super-2 number, since 2×74467874681² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74467874641) 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, 37233937340 + 37233937341.

It is an arithmetic number, because the mean of its divisors is an integer number (37233937341).

Almost surely, 2^74467874681 is an apocalyptic number.

It is an amenable number.

74467874681 is a deficient number, since it is larger than the sum of its proper divisors (1).

74467874681 is an equidigital number, since it uses as much as digits as its factorization.

74467874681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50577408, while the sum is 62.

The spelling of 74467874681 in words is "seventy-four billion, four hundred sixty-seven million, eight hundred seventy-four thousand, six hundred eighty-one".