431657484681 has 8 divisors (see below), whose sum is σ = 575581395744. Its totient is φ = 287752615040.

The previous prime is 431657484649. The next prime is 431657484691. The reversal of 431657484681 is 186484756134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431657484681 - 2⁵ = 431657484649 is a prime.

It is a super-2 number, since 2×431657484681² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431657484691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707375 + ... + 4798196.

It is an arithmetic number, because the mean of its divisors is an integer number (71947674468).

Almost surely, 2^431657484681 is an apocalyptic number.

It is an amenable number.

431657484681 is a deficient number, since it is larger than the sum of its proper divisors (143923911063).

431657484681 is a wasteful number, since it uses less digits than its factorization.

431657484681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520711.

The product of its digits is 15482880, while the sum is 57.

The spelling of 431657484681 in words is "four hundred thirty-one billion, six hundred fifty-seven million, four hundred eighty-four thousand, six hundred eighty-one".