263040050431 has 4 divisors (see below), whose sum is σ = 278512994592. Its totient is φ = 247567106272.

The previous prime is 263040050423. The next prime is 263040050437. The reversal of 263040050431 is 134050040362.

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 263040050431 - 2³ = 263040050423 is a prime.

It is a super-2 number, since 2×263040050431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 263040050431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263040050437) 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, 7736472055 + ... + 7736472088.

It is an arithmetic number, because the mean of its divisors is an integer number (69628248648).

Almost surely, 2^263040050431 is an apocalyptic number.

263040050431 is a deficient number, since it is larger than the sum of its proper divisors (15472944161).

263040050431 is a wasteful number, since it uses less digits than its factorization.

263040050431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472944160.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 263040050431 its reverse (134050040362), we get a palindrome (397090090793).

The spelling of 263040050431 in words is "two hundred sixty-three billion, forty million, fifty thousand, four hundred thirty-one".