263987104963 has 8 divisors (see below), whose sum is σ = 264761694000. Its totient is φ = 263212927488.

The previous prime is 263987104919. The next prime is 263987105087. The reversal of 263987104963 is 369401789362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263987104963 - 2¹³ = 263987096771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263987104898 and 263987104907.

It is not an unprimeable number, because it can be changed into a prime (263987104063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206195 + ... + 1408147.

It is an arithmetic number, because the mean of its divisors is an integer number (33095211750).

Almost surely, 2^263987104963 is an apocalyptic number.

263987104963 is a deficient number, since it is larger than the sum of its proper divisors (774589037).

263987104963 is a wasteful number, since it uses less digits than its factorization.

263987104963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205781.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 263987104963 in words is "two hundred sixty-three billion, nine hundred eighty-seven million, one hundred four thousand, nine hundred sixty-three".