263628955800 has 384 divisors, whose sum is σ = 1092400320000. Its totient is φ = 57086415360.

The previous prime is 263628955769. The next prime is 263628955813. The reversal of 263628955800 is 8559826362.

263628955800 is a `hidden beast` number, since 2 + 6 + 3 + 6 + 2 + 89 + 558 + 0 + 0 = 666.

263628955800 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 534666 + ... + 901734.

It is an arithmetic number, because the mean of its divisors is an integer number (2844792500).

Almost surely, 2^263628955800 is an apocalyptic number.

263628955800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263628955800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546200160000).

263628955800 is an abundant number, since it is smaller than the sum of its proper divisors (828771364200).

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

263628955800 is a wasteful number, since it uses less digits than its factorization.

263628955800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367120 (or 367105 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 263628955800 in words is "two hundred sixty-three billion, six hundred twenty-eight million, nine hundred fifty-five thousand, eight hundred".