7275358661 has 4 divisors (see below), whose sum is σ = 7275910572. Its totient is φ = 7274806752.

The previous prime is 7275358637. The next prime is 7275358679. The reversal of 7275358661 is 1668535727.

7275358661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2491008100 + 4784350561 = 49910^2 + 69169^2 .

It is a cyclic number.

It is not a de Polignac number, because 7275358661 - 2²² = 7271164357 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 (7275358261) 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, 255686 + ... + 282711.

It is an arithmetic number, because the mean of its divisors is an integer number (1818977643).

Almost surely, 2^7275358661 is an apocalyptic number.

It is an amenable number.

7275358661 is a deficient number, since it is larger than the sum of its proper divisors (551911).

7275358661 is a wasteful number, since it uses less digits than its factorization.

7275358661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551910.

The product of its digits is 2116800, while the sum is 50.

The square root of 7275358661 is about 85295.7130282642. The cubic root of 7275358661 is about 1937.6922518961.

The spelling of 7275358661 in words is "seven billion, two hundred seventy-five million, three hundred fifty-eight thousand, six hundred sixty-one".