40183123761 has 16 divisors (see below), whose sum is σ = 64942422720. Its totient is φ = 24353408160.

The previous prime is 40183123759. The next prime is 40183123781. The reversal of 40183123761 is 16732138104.

It is a happy number.

It is not a de Polignac number, because 40183123761 - 2¹ = 40183123759 is a prime.

It is a super-2 number, since 2×40183123761² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40183123711) 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 15 ways as a sum of consecutive naturals, for example, 67648060 + ... + 67648653.

It is an arithmetic number, because the mean of its divisors is an integer number (4058901420).

Almost surely, 2^40183123761 is an apocalyptic number.

It is an amenable number.

40183123761 is a deficient number, since it is larger than the sum of its proper divisors (24759298959).

40183123761 is a wasteful number, since it uses less digits than its factorization.

40183123761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135296733 (or 135296727 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 40183123761 in words is "forty billion, one hundred eighty-three million, one hundred twenty-three thousand, seven hundred sixty-one".