263461421463 has 4 divisors (see below), whose sum is σ = 351281895288. Its totient is φ = 175640947640.

The previous prime is 263461421437. The next prime is 263461421467. The reversal of 263461421463 is 364124164362.

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

It is a cyclic number.

It is not a de Polignac number, because 263461421463 - 2⁸ = 263461421207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263461421467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43910236908 + ... + 43910236913.

It is an arithmetic number, because the mean of its divisors is an integer number (87820473822).

Almost surely, 2^263461421463 is an apocalyptic number.

263461421463 is a deficient number, since it is larger than the sum of its proper divisors (87820473825).

263461421463 is an equidigital number, since it uses as much as digits as its factorization.

263461421463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87820473824.

The product of its digits is 497664, while the sum is 42.

The spelling of 263461421463 in words is "two hundred sixty-three billion, four hundred sixty-one million, four hundred twenty-one thousand, four hundred sixty-three".