40516353173 has 2 divisors, whose sum is σ = 40516353174. Its totient is φ = 40516353172.

The previous prime is 40516353109. The next prime is 40516353197. The reversal of 40516353173 is 37135361504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22709585809 + 17806767364 = 150697^2 + 133442^2 .

It is a cyclic number.

It is not a de Polignac number, because 40516353173 - 2⁶ = 40516353109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40516353373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20258176586 + 20258176587.

It is an arithmetic number, because the mean of its divisors is an integer number (20258176587).

Almost surely, 2^40516353173 is an apocalyptic number.

It is an amenable number.

40516353173 is a deficient number, since it is larger than the sum of its proper divisors (1).

40516353173 is an equidigital number, since it uses as much as digits as its factorization.

40516353173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 40516353173 in words is "forty billion, five hundred sixteen million, three hundred fifty-three thousand, one hundred seventy-three".