74409826333457 has 2 divisors, whose sum is σ = 74409826333458. Its totient is φ = 74409826333456.

The previous prime is 74409826333421. The next prime is 74409826333499. The reversal of 74409826333457 is 75433362890447.

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., 62441540784016 + 11968285549441 = 7901996^2 + 3459521^2 .

It is a cyclic number.

It is not a de Polignac number, because 74409826333457 - 2⁸ = 74409826333201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74409826333393 and 74409826333402.

It is not a weakly prime, because it can be changed into another prime (74409826333357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37204913166728 + 37204913166729.

It is an arithmetic number, because the mean of its divisors is an integer number (37204913166729).

Almost surely, 2^{74409826333457} is an apocalyptic number.

It is an amenable number.

74409826333457 is a deficient number, since it is larger than the sum of its proper divisors (1).

74409826333457 is an equidigital number, since it uses as much as digits as its factorization.

74409826333457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 365783040, while the sum is 65.

The spelling of 74409826333457 in words is "seventy-four trillion, four hundred nine billion, eight hundred twenty-six million, three hundred thirty-three thousand, four hundred fifty-seven".