7741968445 has 4 divisors (see below), whose sum is σ = 9290362140. Its totient is φ = 6193574752.

The previous prime is 7741968433. The next prime is 7741968473. The reversal of 7741968445 is 5448691477.

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 908962201 + 6833006244 = 30149^2 + 82662^2 .

It is a cyclic number.

It is not a de Polignac number, because 7741968445 - 2⁵ = 7741968413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774196840 + ... + 774196849.

It is an arithmetic number, because the mean of its divisors is an integer number (2322590535).

Almost surely, 2^7741968445 is an apocalyptic number.

It is an amenable number.

7741968445 is a deficient number, since it is larger than the sum of its proper divisors (1548393695).

7741968445 is a wasteful number, since it uses less digits than its factorization.

7741968445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548393694.

The product of its digits is 6773760, while the sum is 55.

The square root of 7741968445 is about 87988.4563167237. The cubic root of 7741968445 is about 1978.2619551320.

The spelling of 7741968445 in words is "seven billion, seven hundred forty-one million, nine hundred sixty-eight thousand, four hundred forty-five".