431632520262561 has 8 divisors (see below), whose sum is σ = 585264434254560. Its totient is φ = 282877809889472.

The previous prime is 431632520262553. The next prime is 431632520262577. The reversal of 431632520262561 is 165262025236134.

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 431632520262561 - 2³ = 431632520262553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431632520262561.

It is not an unprimeable number, because it can be changed into a prime (431632520262061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219300904520 + ... + 1219300904873.

It is an arithmetic number, because the mean of its divisors is an integer number (73158054281820).

Almost surely, 2^{431632520262561} is an apocalyptic number.

It is an amenable number.

431632520262561 is a deficient number, since it is larger than the sum of its proper divisors (153631913991999).

431632520262561 is a wasteful number, since it uses less digits than its factorization.

431632520262561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438601809455.

The product of its (nonzero) digits is 3110400, while the sum is 48.

Adding to 431632520262561 its reverse (165262025236134), we get a palindrome (596894545498695).

The spelling of 431632520262561 in words is "four hundred thirty-one trillion, six hundred thirty-two billion, five hundred twenty million, two hundred sixty-two thousand, five hundred sixty-one".