7745576545 has 8 divisors (see below), whose sum is σ = 10622505024. Its totient is φ = 5311252464.

The previous prime is 7745576519. The next prime is 7745576551. The reversal of 7745576545 is 5456755477.

7745576545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7745576545 - 2⁷ = 7745576417 is a prime.

It is a super-3 number, since 3×7745576545³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 110651059 + ... + 110651128.

It is an arithmetic number, because the mean of its divisors is an integer number (1327813128).

Almost surely, 2^7745576545 is an apocalyptic number.

It is an amenable number.

7745576545 is a deficient number, since it is larger than the sum of its proper divisors (2876928479).

7745576545 is a wasteful number, since it uses less digits than its factorization.

7745576545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221302199.

The product of its digits is 20580000, while the sum is 55.

The square root of 7745576545 is about 88008.9571861865. The cubic root of 7745576545 is about 1978.5692266164.

The spelling of 7745576545 in words is "seven billion, seven hundred forty-five million, five hundred seventy-six thousand, five hundred forty-five".