263946269013 has 16 divisors (see below), whose sum is σ = 402217944576. Its totient is φ = 150821149680.

The previous prime is 263946268991. The next prime is 263946269017. The reversal of 263946269013 is 310962649362.

It is a happy number.

It is not a de Polignac number, because 263946269013 - 2¹⁰ = 263946267989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263946269017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438418 + ... + 848588.

It is an arithmetic number, because the mean of its divisors is an integer number (25138621536).

Almost surely, 2^263946269013 is an apocalyptic number.

It is an amenable number.

263946269013 is a deficient number, since it is larger than the sum of its proper divisors (138271675563).

263946269013 is a wasteful number, since it uses less digits than its factorization.

263946269013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440824.

The product of its (nonzero) digits is 2519424, while the sum is 51.

The spelling of 263946269013 in words is "two hundred sixty-three billion, nine hundred forty-six million, two hundred sixty-nine thousand, thirteen".