40124723132605 has 32 divisors (see below), whose sum is σ = 52515417398400. Its totient is φ = 29330832690432.

The previous prime is 40124723132603. The next prime is 40124723132693. The reversal of 40124723132605 is 50623132742104.

It is a cyclic number.

It is not a de Polignac number, because 40124723132605 - 2¹ = 40124723132603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40124723132603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67238194 + ... + 67832323.

It is an arithmetic number, because the mean of its divisors is an integer number (1641106793700).

Almost surely, 2^{40124723132605} is an apocalyptic number.

It is an amenable number.

40124723132605 is a deficient number, since it is larger than the sum of its proper divisors (12390694265795).

40124723132605 is a wasteful number, since it uses less digits than its factorization.

40124723132605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135070653.

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 40124723132605 its reverse (50623132742104), we get a palindrome (90747855874709).

The spelling of 40124723132605 in words is "forty trillion, one hundred twenty-four billion, seven hundred twenty-three million, one hundred thirty-two thousand, six hundred five".