263481455256 has 32 divisors (see below), whose sum is σ = 663890288640. Its totient is φ = 87135598368.

The previous prime is 263481455201. The next prime is 263481455299. The reversal of 263481455256 is 652554184362.

It is a junction number, because it is equal to n+sod(n) for n = 263481455199 and 263481455208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43218976 + ... + 43225071.

It is an arithmetic number, because the mean of its divisors is an integer number (20746571520).

Almost surely, 2^263481455256 is an apocalyptic number.

It is an amenable number.

263481455256 is an abundant number, since it is smaller than the sum of its proper divisors (400408833384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263481455256 is a wasteful number, since it uses less digits than its factorization.

263481455256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86444183 (or 86444179 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 263481455256 in words is "two hundred sixty-three billion, four hundred eighty-one million, four hundred fifty-five thousand, two hundred fifty-six".