7464164561 has 12 divisors (see below), whose sum is σ = 8746189668. Its totient is φ = 6351149952.

The previous prime is 7464164537. The next prime is 7464164563. The reversal of 7464164561 is 1654614647.

It can be written as a sum of positive squares in 2 ways, for example, as 4245304336 + 3218860225 = 65156^2 + 56735^2 .

It is not a de Polignac number, because 7464164561 - 2¹⁰ = 7464163537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7464164563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549236 + ... + 562661.

It is an arithmetic number, because the mean of its divisors is an integer number (728849139).

Almost surely, 2^7464164561 is an apocalyptic number.

It is an amenable number.

7464164561 is a deficient number, since it is larger than the sum of its proper divisors (1282025107).

7464164561 is a wasteful number, since it uses less digits than its factorization.

7464164561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112048 (or 1112041 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 7464164561 is about 86395.3966424138. The cubic root of 7464164561 is about 1954.3112642490.

The spelling of 7464164561 in words is "seven billion, four hundred sixty-four million, one hundred sixty-four thousand, five hundred sixty-one".