7165794457 has 8 divisors (see below), whose sum is σ = 7730469576. Its totient is φ = 6617025792.

The previous prime is 7165794443. The next prime is 7165794479. The reversal of 7165794457 is 7544975617.

It can be written as a sum of positive squares in 4 ways, for example, as 681679881 + 6484114576 = 26109^2 + 80524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7165794457 is a prime.

It is a super-2 number, since 2×7165794457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7165794398 and 7165794407.

It is not an unprimeable number, because it can be changed into a prime (7165794487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3975678 + ... + 3977479.

It is an arithmetic number, because the mean of its divisors is an integer number (966308697).

Almost surely, 2^7165794457 is an apocalyptic number.

It is an amenable number.

7165794457 is a deficient number, since it is larger than the sum of its proper divisors (564675119).

7165794457 is a wasteful number, since it uses less digits than its factorization.

7165794457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7953227.

The product of its digits is 7408800, while the sum is 55.

The square root of 7165794457 is about 84651.0156879408. The cubic root of 7165794457 is about 1927.9160353844.

The spelling of 7165794457 in words is "seven billion, one hundred sixty-five million, seven hundred ninety-four thousand, four hundred fifty-seven".