8723755745 has 8 divisors (see below), whose sum is σ = 10666026216. Its totient is φ = 6847325056.

The previous prime is 8723755679. The next prime is 8723755757. The reversal of 8723755745 is 5475573278.

It can be written as a sum of positive squares in 4 ways, for example, as 4356132001 + 4367623744 = 66001^2 + 66088^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8723755745 - 2¹² = 8723751649 is a prime.

It is a super-2 number, since 2×8723755745² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16459652 + ... + 16460181.

It is an arithmetic number, because the mean of its divisors is an integer number (1333253277).

Almost surely, 2^8723755745 is an apocalyptic number.

It is an amenable number.

8723755745 is a deficient number, since it is larger than the sum of its proper divisors (1942270471).

8723755745 is a wasteful number, since it uses less digits than its factorization.

8723755745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32919891.

The product of its digits is 8232000, while the sum is 53.

The square root of 8723755745 is about 93401.0478795608. The cubic root of 8723755745 is about 2058.5803950609.

The spelling of 8723755745 in words is "eight billion, seven hundred twenty-three million, seven hundred fifty-five thousand, seven hundred forty-five".