40171072726 has 16 divisors (see below), whose sum is σ = 63827320896. Its totient is φ = 18896269696.

The previous prime is 40171072723. The next prime is 40171072771. The reversal of 40171072726 is 62727017104.

It is a super-2 number, since 2×40171072726² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40171072723) 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 7 ways as a sum of consecutive naturals, for example, 158221 + ... + 324616.

It is an arithmetic number, because the mean of its divisors is an integer number (3989207556).

Almost surely, 2^40171072726 is an apocalyptic number.

40171072726 is a deficient number, since it is larger than the sum of its proper divisors (23656248170).

40171072726 is a wasteful number, since it uses less digits than its factorization.

40171072726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485303.

The product of its (nonzero) digits is 32928, while the sum is 37.

The spelling of 40171072726 in words is "forty billion, one hundred seventy-one million, seventy-two thousand, seven hundred twenty-six".