40662626617 has 4 divisors (see below), whose sum is σ = 42802764880. Its totient is φ = 38522488356.

The previous prime is 40662626567. The next prime is 40662626639. The reversal of 40662626617 is 71662626604.

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 a de Polignac number, because none of the positive numbers 2^k-40662626617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40662626117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070069103 + ... + 1070069140.

It is an arithmetic number, because the mean of its divisors is an integer number (10700691220).

Almost surely, 2^40662626617 is an apocalyptic number.

It is an amenable number.

40662626617 is a deficient number, since it is larger than the sum of its proper divisors (2140138263).

40662626617 is a wasteful number, since it uses less digits than its factorization.

40662626617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140138262.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 40662626617 in words is "forty billion, six hundred sixty-two million, six hundred twenty-six thousand, six hundred seventeen".