754905535609 has 9 divisors (see below), whose sum is σ = 801939564237. Its totient is φ = 710485425984.

The previous prime is 754905535597. The next prime is 754905535621. The reversal of 754905535609 is 906535509457.

The square root of 754905535609 is 868853.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (754905535597) and next prime (754905535621).

It can be written as a sum of positive squares in 4 ways, for example, as 452814597225 + 302090938384 = 672915^2 + 549628^2 .

It is not a de Polignac number, because 754905535609 - 2⁵ = 754905535577 is a prime.

It is a super-2 number, since 2×754905535609² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (754905535679) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14744947 + ... + 14796055.

Almost surely, 2^754905535609 is an apocalyptic number.

754905535609 is the 868853-rd square number.

754905535609 is the 434427-th centered octagonal number.

It is an amenable number.

754905535609 is a deficient number, since it is larger than the sum of its proper divisors (47034028628).

754905535609 is an frugal number, since it uses more digits than its factorization.

754905535609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102252 (or 51126 counting only the distinct ones).

The product of its (nonzero) digits is 25515000, while the sum is 58.

The spelling of 754905535609 in words is "seven hundred fifty-four billion, nine hundred five million, five hundred thirty-five thousand, six hundred nine".