7545664613 has 4 divisors (see below), whose sum is σ = 7547746368. Its totient is φ = 7543582860.

The previous prime is 7545664589. The next prime is 7545664631. The reversal of 7545664613 is 3164665457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7545664613 - 2¹⁰ = 7545663589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7545664663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035431 + ... + 1042692.

It is an arithmetic number, because the mean of its divisors is an integer number (1886936592).

Almost surely, 2^7545664613 is an apocalyptic number.

It is an amenable number.

7545664613 is a deficient number, since it is larger than the sum of its proper divisors (2081755).

7545664613 is a wasteful number, since it uses less digits than its factorization.

7545664613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081754.

The product of its digits is 1814400, while the sum is 47.

The square root of 7545664613 is about 86865.7850537253. The cubic root of 7545664613 is about 1961.3984720436.

The spelling of 7545664613 in words is "seven billion, five hundred forty-five million, six hundred sixty-four thousand, six hundred thirteen".