40140615262723 has 4 divisors (see below), whose sum is σ = 40140707286240. Its totient is φ = 40140523239208.

The previous prime is 40140615262717. The next prime is 40140615262807. The reversal of 40140615262723 is 32726251604104.

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-40140615262723 is a prime.

It is a super-2 number, since 2×40140615262723² (a number of 28 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 40140615262723.

It is not an unprimeable number, because it can be changed into a prime (40140615212723) 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, 45354328 + ... + 46230901.

It is an arithmetic number, because the mean of its divisors is an integer number (10035176821560).

Almost surely, 2^{40140615262723} is an apocalyptic number.

40140615262723 is a deficient number, since it is larger than the sum of its proper divisors (92023517).

40140615262723 is an equidigital number, since it uses as much as digits as its factorization.

40140615262723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92023516.

The product of its (nonzero) digits is 483840, while the sum is 43.

Adding to 40140615262723 its reverse (32726251604104), we get a palindrome (72866866866827).

The spelling of 40140615262723 in words is "forty trillion, one hundred forty billion, six hundred fifteen million, two hundred sixty-two thousand, seven hundred twenty-three".