263975859268 has 24 divisors (see below), whose sum is σ = 514676340864. Its totient is φ = 117436068000.

The previous prime is 263975859241. The next prime is 263975859281. The reversal of 263975859268 is 862958579362.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 263975859197 and 263975859206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63821883 + ... + 63826018.

It is an arithmetic number, because the mean of its divisors is an integer number (21444847536).

Almost surely, 2^263975859268 is an apocalyptic number.

It is an amenable number.

263975859268 is a deficient number, since it is larger than the sum of its proper divisors (250700481596).

263975859268 is a wasteful number, since it uses less digits than its factorization.

263975859268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127647963 (or 127647961 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 70.

The spelling of 263975859268 in words is "two hundred sixty-three billion, nine hundred seventy-five million, eight hundred fifty-nine thousand, two hundred sixty-eight".