74570777843489 has 2 divisors, whose sum is σ = 74570777843490. Its totient is φ = 74570777843488.

The previous prime is 74570777843459. The next prime is 74570777843531. The reversal of 74570777843489 is 98434877707547.

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., 72504969550225 + 2065808293264 = 8514985^2 + 1437292^2 .

It is a cyclic number.

It is not a de Polignac number, because 74570777843489 - 2²⁸ = 74570509408033 is a prime.

It is not a weakly prime, because it can be changed into another prime (74570777843459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37285388921744 + 37285388921745.

It is an arithmetic number, because the mean of its divisors is an integer number (37285388921745).

Almost surely, 2^{74570777843489} is an apocalyptic number.

It is an amenable number.

74570777843489 is a deficient number, since it is larger than the sum of its proper divisors (1).

74570777843489 is an equidigital number, since it uses as much as digits as its factorization.

74570777843489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9293598720, while the sum is 80.

The spelling of 74570777843489 in words is "seventy-four trillion, five hundred seventy billion, seven hundred seventy-seven million, eight hundred forty-three thousand, four hundred eighty-nine".