461635445255 has 4 divisors (see below), whose sum is σ = 553962534312. Its totient is φ = 369308356200.

The previous prime is 461635445233. The next prime is 461635445329. The reversal of 461635445255 is 552544536164.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 461635445255 - 2⁶ = 461635445191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 46163544521 + ... + 46163544530.

It is an arithmetic number, because the mean of its divisors is an integer number (138490633578).

Almost surely, 2^461635445255 is an apocalyptic number.

461635445255 is a deficient number, since it is larger than the sum of its proper divisors (92327089057).

461635445255 is an equidigital number, since it uses as much as digits as its factorization.

461635445255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92327089056.

The product of its digits is 8640000, while the sum is 50.

Subtracting 461635445255 from its reverse (552544536164), we obtain a palindrome (90909090909).

The spelling of 461635445255 in words is "four hundred sixty-one billion, six hundred thirty-five million, four hundred forty-five thousand, two hundred fifty-five".