263868621685214 has 64 divisors (see below), whose sum is σ = 515802150654336. Its totient is φ = 98246251966464.

The previous prime is 263868621685213. The next prime is 263868621685261. The reversal of 263868621685214 is 412586126868362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263868621685213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413698754 + ... + 414336090.

It is an arithmetic number, because the mean of its divisors is an integer number (8059408603974).

Almost surely, 2^{263868621685214} is an apocalyptic number.

263868621685214 is a deficient number, since it is larger than the sum of its proper divisors (251933528969122).

263868621685214 is a wasteful number, since it uses less digits than its factorization.

263868621685214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771189.

The product of its digits is 318504960, while the sum is 68.

The spelling of 263868621685214 in words is "two hundred sixty-three trillion, eight hundred sixty-eight billion, six hundred twenty-one million, six hundred eighty-five thousand, two hundred fourteen".