263040557427 has 6 divisors (see below), whose sum is σ = 379947471852. Its totient is φ = 175360371612.

The previous prime is 263040557419. The next prime is 263040557441. The reversal of 263040557427 is 724755040362.

263040557427 is a `hidden beast` number, since 2 + 6 + 30 + 40 + 5 + 574 + 2 + 7 = 666.

It is not a de Polignac number, because 263040557427 - 2³ = 263040557419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263040557467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14613364293 + ... + 14613364310.

It is an arithmetic number, because the mean of its divisors is an integer number (63324578642).

Almost surely, 2^263040557427 is an apocalyptic number.

263040557427 is a deficient number, since it is larger than the sum of its proper divisors (116906914425).

263040557427 is a wasteful number, since it uses less digits than its factorization.

263040557427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29226728609 (or 29226728606 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

Adding to 263040557427 its reverse (724755040362), we get a palindrome (987795597789).

The spelling of 263040557427 in words is "two hundred sixty-three billion, forty million, five hundred fifty-seven thousand, four hundred twenty-seven".