74462055643637 has 2 divisors, whose sum is σ = 74462055643638. Its totient is φ = 74462055643636.

The previous prime is 74462055643601. The next prime is 74462055643693. The reversal of 74462055643637 is 73634655026447.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66223284297361 + 8238771346276 = 8137769^2 + 2870326^2 .

It is a cyclic number.

It is not a de Polignac number, because 74462055643637 - 2¹⁶ = 74462055578101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74462055643637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74462055643697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37231027821818 + 37231027821819.

It is an arithmetic number, because the mean of its divisors is an integer number (37231027821819).

Almost surely, 2^{74462055643637} is an apocalyptic number.

It is an amenable number.

74462055643637 is a deficient number, since it is larger than the sum of its proper divisors (1).

74462055643637 is an equidigital number, since it uses as much as digits as its factorization.

74462055643637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 304819200, while the sum is 62.

The spelling of 74462055643637 in words is "seventy-four trillion, four hundred sixty-two billion, fifty-five million, six hundred forty-three thousand, six hundred thirty-seven".