421146571417 has 48 divisors (see below), whose sum is σ = 507570996240. Its totient is φ = 347052625920.

The previous prime is 421146571409. The next prime is 421146571423. The reversal of 421146571417 is 714175641124.

It can be written as a sum of positive squares in 8 ways, for example, as 171757198096 + 249389373321 = 414436^2 + 499389^2 .

It is not a de Polignac number, because 421146571417 - 2³ = 421146571409 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (421146571457) 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 47 ways as a sum of consecutive naturals, for example, 19363773 + ... + 19385509.

It is an arithmetic number, because the mean of its divisors is an integer number (10574395755).

Almost surely, 2^421146571417 is an apocalyptic number.

It is an amenable number.

421146571417 is a deficient number, since it is larger than the sum of its proper divisors (86424424823).

421146571417 is a wasteful number, since it uses less digits than its factorization.

421146571417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21994 (or 21983 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The spelling of 421146571417 in words is "four hundred twenty-one billion, one hundred forty-six million, five hundred seventy-one thousand, four hundred seventeen".