421830679617 has 12 divisors (see below), whose sum is σ = 609320808720. Its totient is φ = 281215917528.

The previous prime is 421830679541. The next prime is 421830679619. The reversal of 421830679617 is 716976038124.

421830679617 is a `hidden beast` number, since 4 + 2 + 18 + 3 + 0 + 6 + 7 + 9 + 617 = 666.

It is not a de Polignac number, because 421830679617 - 2⁷ = 421830679489 is a prime.

It is a super-2 number, since 2×421830679617² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421830679619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269434 + ... + 957212.

It is an arithmetic number, because the mean of its divisors is an integer number (50776734060).

Almost surely, 2^421830679617 is an apocalyptic number.

It is an amenable number.

421830679617 is a deficient number, since it is larger than the sum of its proper divisors (187490129103).

421830679617 is a wasteful number, since it uses less digits than its factorization.

421830679617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755932 (or 755929 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 421830679617 in words is "four hundred twenty-one billion, eight hundred thirty million, six hundred seventy-nine thousand, six hundred seventeen".