7646817145 has 16 divisors (see below), whose sum is σ = 10012076928. Its totient is φ = 5560378240.

The previous prime is 7646817137. The next prime is 7646817149. The reversal of 7646817145 is 5417186467.

It is a happy number.

It is not a de Polignac number, because 7646817145 - 2³ = 7646817137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7646817149) 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 15 ways as a sum of consecutive naturals, for example, 635172 + ... + 647098.

It is an arithmetic number, because the mean of its divisors is an integer number (625754808).

Almost surely, 2^7646817145 is an apocalyptic number.

It is an amenable number.

7646817145 is a deficient number, since it is larger than the sum of its proper divisors (2365259783).

7646817145 is a wasteful number, since it uses less digits than its factorization.

7646817145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23600.

The product of its digits is 1128960, while the sum is 49.

The square root of 7646817145 is about 87446.0813587436. The cubic root of 7646817145 is about 1970.1240308589.

The spelling of 7646817145 in words is "seven billion, six hundred forty-six million, eight hundred seventeen thousand, one hundred forty-five".