40520537417 has 4 divisors (see below), whose sum is σ = 40523870160. Its totient is φ = 40517204676.

The previous prime is 40520537389. The next prime is 40520537423. The reversal of 40520537417 is 71473502504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40520537417 - 2⁶ = 40520537353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40520537437) 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, 1648067 + ... + 1672472.

It is an arithmetic number, because the mean of its divisors is an integer number (10130967540).

Almost surely, 2^40520537417 is an apocalyptic number.

It is an amenable number.

40520537417 is a deficient number, since it is larger than the sum of its proper divisors (3332743).

40520537417 is a wasteful number, since it uses less digits than its factorization.

40520537417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332742.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 40520537417 in words is "forty billion, five hundred twenty million, five hundred thirty-seven thousand, four hundred seventeen".