263040347423 has 32 divisors (see below), whose sum is σ = 317040624768. Its totient is φ = 213547622400.

The previous prime is 263040347417. The next prime is 263040347441. The reversal of 263040347423 is 324743040362.

It is not a de Polignac number, because 263040347423 - 2¹² = 263040343327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263040347483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1446683 + ... + 1618323.

It is an arithmetic number, because the mean of its divisors is an integer number (9907519524).

Almost surely, 2^263040347423 is an apocalyptic number.

263040347423 is a deficient number, since it is larger than the sum of its proper divisors (54000277345).

263040347423 is a wasteful number, since it uses less digits than its factorization.

263040347423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171843.

The product of its (nonzero) digits is 290304, while the sum is 38.

Adding to 263040347423 its reverse (324743040362), we get a palindrome (587783387785).

The spelling of 263040347423 in words is "two hundred sixty-three billion, forty million, three hundred forty-seven thousand, four hundred twenty-three".