74001674561 has 2 divisors, whose sum is σ = 74001674562. Its totient is φ = 74001674560.

The previous prime is 74001674533. The next prime is 74001674567. The reversal of 74001674561 is 16547610047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41394343936 + 32607330625 = 203456^2 + 180575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74001674561 is a prime.

It is not a weakly prime, because it can be changed into another prime (74001674567) 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, 37000837280 + 37000837281.

It is an arithmetic number, because the mean of its divisors is an integer number (37000837281).

Almost surely, 2^74001674561 is an apocalyptic number.

It is an amenable number.

74001674561 is a deficient number, since it is larger than the sum of its proper divisors (1).

74001674561 is an equidigital number, since it uses as much as digits as its factorization.

74001674561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 74001674561 in words is "seventy-four billion, one million, six hundred seventy-four thousand, five hundred sixty-one".