40168275523 has 4 divisors (see below), whose sum is σ = 40926167568. Its totient is φ = 39410383480.

The previous prime is 40168275439. The next prime is 40168275557. The reversal of 40168275523 is 32557286104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40168275523 is a prime.

It is a super-3 number, since 3×40168275523³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 40168275523.

It is not an unprimeable number, because it can be changed into a prime (40168272523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 378945943 + ... + 378946048.

It is an arithmetic number, because the mean of its divisors is an integer number (10231541892).

Almost surely, 2^40168275523 is an apocalyptic number.

40168275523 is a deficient number, since it is larger than the sum of its proper divisors (757892045).

40168275523 is an equidigital number, since it uses as much as digits as its factorization.

40168275523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757892044.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 40168275523 in words is "forty billion, one hundred sixty-eight million, two hundred seventy-five thousand, five hundred twenty-three".