40681226617 has 4 divisors (see below), whose sum is σ = 40694075136. Its totient is φ = 40668378100.

The previous prime is 40681226603. The next prime is 40681226639. The reversal of 40681226617 is 71662218604.

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 40681226617 - 2¹⁹ = 40680702329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40681206617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6419509 + ... + 6425842.

It is an arithmetic number, because the mean of its divisors is an integer number (10173518784).

Almost surely, 2^40681226617 is an apocalyptic number.

It is an amenable number.

40681226617 is a deficient number, since it is larger than the sum of its proper divisors (12848519).

40681226617 is a wasteful number, since it uses less digits than its factorization.

40681226617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12848518.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 40681226617 in words is "forty billion, six hundred eighty-one million, two hundred twenty-six thousand, six hundred seventeen".