424351563681 has 16 divisors (see below), whose sum is σ = 576529664256. Its totient is φ = 277538217216.

The previous prime is 424351563673. The next prime is 424351563683. The reversal of 424351563681 is 186365153424.

It is not a de Polignac number, because 424351563681 - 2³ = 424351563673 is a prime.

It is a super-2 number, since 2×424351563681² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 424351563681.

It is not an unprimeable number, because it can be changed into a prime (424351563683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734936 + ... + 1964358.

It is an arithmetic number, because the mean of its divisors is an integer number (36033104016).

Almost surely, 2^424351563681 is an apocalyptic number.

It is an amenable number.

424351563681 is a deficient number, since it is larger than the sum of its proper divisors (152178100575).

424351563681 is a wasteful number, since it uses less digits than its factorization.

424351563681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241112.

The product of its digits is 2073600, while the sum is 48.

The spelling of 424351563681 in words is "four hundred twenty-four billion, three hundred fifty-one million, five hundred sixty-three thousand, six hundred eighty-one".