7442804691605 has 4 divisors (see below), whose sum is σ = 8931365629932. Its totient is φ = 5954243753280.

The previous prime is 7442804691533. The next prime is 7442804691631. The reversal of 7442804691605 is 5061964082447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5943566071249 + 1499238620356 = 2437943^2 + 1224434^2 .

It is not a de Polignac number, because 7442804691605 - 2¹⁴ = 7442804675221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 744280469156 + ... + 744280469165.

It is an arithmetic number, because the mean of its divisors is an integer number (2232841407483).

Almost surely, 2^{7442804691605} is an apocalyptic number.

It is an amenable number.

7442804691605 is a deficient number, since it is larger than the sum of its proper divisors (1488560938327).

7442804691605 is a wasteful number, since it uses less digits than its factorization.

7442804691605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488560938326.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 7442804691605 in words is "seven trillion, four hundred forty-two billion, eight hundred four million, six hundred ninety-one thousand, six hundred five".