268222063728 has 160 divisors (see below), whose sum is σ = 708591147264. Its totient is φ = 87406995456.

The previous prime is 268222063723. The next prime is 268222063729. The reversal of 268222063728 is 827360222862.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268222063723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312977476 + ... + 312978332.

Almost surely, 2^268222063728 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 268222063728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354295573632).

268222063728 is an abundant number, since it is smaller than the sum of its proper divisors (440369083536).

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

268222063728 is a wasteful number, since it uses less digits than its factorization.

268222063728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 268222063728 in words is "two hundred sixty-eight billion, two hundred twenty-two million, sixty-three thousand, seven hundred twenty-eight".