431240261120216 has 8 divisors (see below), whose sum is σ = 808575489600420. Its totient is φ = 215620130560104.

The previous prime is 431240261120213. The next prime is 431240261120267. The reversal of 431240261120216 is 612021162042134.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×431240261120216² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431240261120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26952516320006 + ... + 26952516320021.

Almost surely, 2^{431240261120216} is an apocalyptic number.

It is an amenable number.

431240261120216 is a deficient number, since it is larger than the sum of its proper divisors (377335228480204).

431240261120216 is a wasteful number, since it uses less digits than its factorization.

431240261120216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53905032640033 (or 53905032640029 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 431240261120216 in words is "four hundred thirty-one trillion, two hundred forty billion, two hundred sixty-one million, one hundred twenty thousand, two hundred sixteen".