23507756705 has 8 divisors (see below), whose sum is σ = 28415216232. Its totient is φ = 18668933248.

The previous prime is 23507756693. The next prime is 23507756759. The reversal of 23507756705 is 50765770532.

It can be written as a sum of positive squares in 4 ways, for example, as 6994478689 + 16513278016 = 83633^2 + 128504^2 .

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-23507756705 is a prime.

It is a super-2 number, since 2×23507756705² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23507756705.

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, 17158262 + ... + 17159631.

It is an arithmetic number, because the mean of its divisors is an integer number (3551902029).

Almost surely, 2^23507756705 is an apocalyptic number.

It is an amenable number.

23507756705 is a deficient number, since it is larger than the sum of its proper divisors (4907459527).

23507756705 is a wasteful number, since it uses less digits than its factorization.

23507756705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34318035.

The product of its (nonzero) digits is 1543500, while the sum is 47.

The spelling of 23507756705 in words is "twenty-three billion, five hundred seven million, seven hundred fifty-six thousand, seven hundred five".