263209228953 has 8 divisors (see below), whose sum is σ = 382849787616. Its totient is φ = 159520744800.

The previous prime is 263209228949. The next prime is 263209228979. The reversal of 263209228953 is 359822902362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 263209228953 - 2² = 263209228949 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 263209228896 and 263209228905.

It is not an unprimeable number, because it can be changed into a prime (263209228943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988018588 + ... + 3988018653.

It is an arithmetic number, because the mean of its divisors is an integer number (47856223452).

Almost surely, 2^263209228953 is an apocalyptic number.

It is an amenable number.

263209228953 is a deficient number, since it is larger than the sum of its proper divisors (119640558663).

263209228953 is a wasteful number, since it uses less digits than its factorization.

263209228953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976037255.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 263209228953 in words is "two hundred sixty-three billion, two hundred nine million, two hundred twenty-eight thousand, nine hundred fifty-three".