7740045073 has 4 divisors (see below), whose sum is σ = 8195341860. Its totient is φ = 7284748288.

The previous prime is 7740045037. The next prime is 7740045097. The reversal of 7740045073 is 3705400477.

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 2816637184 + 4923407889 = 53072^2 + 70167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7740045073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7740045013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227648368 + ... + 227648401.

It is an arithmetic number, because the mean of its divisors is an integer number (2048835465).

Almost surely, 2^7740045073 is an apocalyptic number.

It is an amenable number.

7740045073 is a deficient number, since it is larger than the sum of its proper divisors (455296787).

7740045073 is a wasteful number, since it uses less digits than its factorization.

7740045073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455296786.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 7740045073 is about 87977.5259540753. The cubic root of 7740045073 is about 1978.0981187289.

The spelling of 7740045073 in words is "seven billion, seven hundred forty million, forty-five thousand, seventy-three".