263128695048 has 108 divisors (see below), whose sum is σ = 740342514015. Its totient is φ = 87670391472.

The previous prime is 263128695029. The next prime is 263128695059. The reversal of 263128695048 is 840596821362.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

263128695048 is a `hidden beast` number, since 2 + 6 + 3 + 128 + 6 + 9 + 504 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131564347524 + 131564347524 = 362718^2 + 362718^2 .

It is a tau number, because it is divible by the number of its divisors (108).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=362718.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 263128694985 and 263128695003.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 117519513 + ... + 117521751.

Almost surely, 2^263128695048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263128695048

263128695048 is an abundant number, since it is smaller than the sum of its proper divisors (477213818967).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263128695048 is an frugal number, since it uses more digits than its factorization.

263128695048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 263128695048 in words is "two hundred sixty-three billion, one hundred twenty-eight million, six hundred ninety-five thousand, forty-eight".