263776885423 has 4 divisors (see below), whose sum is σ = 263788838280. Its totient is φ = 263764932568.

The previous prime is 263776885403. The next prime is 263776885447. The reversal of 263776885423 is 324588677362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 263776885423 - 2⁵ = 263776885391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263776885403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943265 + ... + 5987482.

It is an arithmetic number, because the mean of its divisors is an integer number (65947209570).

Almost surely, 2^263776885423 is an apocalyptic number.

263776885423 is a deficient number, since it is larger than the sum of its proper divisors (11952857).

263776885423 is a wasteful number, since it uses less digits than its factorization.

263776885423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952856.

The product of its digits is 81285120, while the sum is 61.

The spelling of 263776885423 in words is "two hundred sixty-three billion, seven hundred seventy-six million, eight hundred eighty-five thousand, four hundred twenty-three".