263213323199 has 8 divisors (see below), whose sum is σ = 263838703488. Its totient is φ = 262588574880.

The previous prime is 263213323157. The next prime is 263213323229. The reversal of 263213323199 is 991323312362.

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 263213323199 - 2³² = 258918355903 is a prime.

It is a super-2 number, since 2×263213323199² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263213323099) 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, 681269 + ... + 995265.

It is an arithmetic number, because the mean of its divisors is an integer number (32979837936).

Almost surely, 2^263213323199 is an apocalyptic number.

263213323199 is a deficient number, since it is larger than the sum of its proper divisors (625380289).

263213323199 is a wasteful number, since it uses less digits than its factorization.

263213323199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315985.

The product of its digits is 314928, while the sum is 44.

The spelling of 263213323199 in words is "two hundred sixty-three billion, two hundred thirteen million, three hundred twenty-three thousand, one hundred ninety-nine".