263767828728 has 32 divisors (see below), whose sum is σ = 659457095760. Its totient is φ = 87917606400.

The previous prime is 263767828721. The next prime is 263767828771. The reversal of 263767828728 is 827828767362.

263767828728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263767828721) 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, 130678 + ... + 737978.

Almost surely, 2^263767828728 is an apocalyptic number.

It is an amenable number.

263767828728 is an abundant number, since it is smaller than the sum of its proper divisors (395689267032).

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

263767828728 is a wasteful number, since it uses less digits than its factorization.

263767828728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625407 (or 625403 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 66.

The spelling of 263767828728 in words is "two hundred sixty-three billion, seven hundred sixty-seven million, eight hundred twenty-eight thousand, seven hundred twenty-eight".