417918920869 has 4 divisors (see below), whose sum is σ = 417935244096. Its totient is φ = 417902597644.

The previous prime is 417918920813. The next prime is 417918920879. The reversal of 417918920869 is 968029819714.

It is a happy number.

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 417918920869 - 2⁹ = 417918920357 is a prime.

It is a super-2 number, since 2×417918920869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 417918920869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417918920879) 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, 8123149 + ... + 8174434.

It is an arithmetic number, because the mean of its divisors is an integer number (104483811024).

Almost surely, 2^417918920869 is an apocalyptic number.

It is an amenable number.

417918920869 is a deficient number, since it is larger than the sum of its proper divisors (16323227).

417918920869 is a wasteful number, since it uses less digits than its factorization.

417918920869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323226.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 417918920869 in words is "four hundred seventeen billion, nine hundred eighteen million, nine hundred twenty thousand, eight hundred sixty-nine".