431446667716 has 27 divisors (see below), whose sum is σ = 802099381069. Its totient is φ = 203023216448.

The previous prime is 431446667689. The next prime is 431446667719. The reversal of 431446667716 is 617766644134.

It is a happy number.

The square root of 431446667716 is 656846.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 335901384900 + 95545282816 = 579570^2 + 309104^2 .

It is a super-2 number, since 2×431446667716² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431446667719) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22323105 + ... + 22342423.

Almost surely, 2^431446667716 is an apocalyptic number.

431446667716 is the 656846-th square number.

It is an amenable number.

431446667716 is a deficient number, since it is larger than the sum of its proper divisors (370652713353).

431446667716 is an frugal number, since it uses more digits than its factorization.

431446667716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38676 (or 19338 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 55.

The spelling of 431446667716 in words is "four hundred thirty-one billion, four hundred forty-six million, six hundred sixty-seven thousand, seven hundred sixteen".