263792968320 has 256 divisors, whose sum is σ = 974498273280. Its totient is φ = 59446087680.

The previous prime is 263792968199. The next prime is 263792968331. The reversal of 263792968320 is 23869297362.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816019 + ... + 1092461.

It is an arithmetic number, because the mean of its divisors is an integer number (3806633880).

Almost surely, 2^263792968320 is an apocalyptic number.

263792968320 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 263792968320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487249136640).

263792968320 is an abundant number, since it is smaller than the sum of its proper divisors (710705304960).

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

263792968320 is a wasteful number, since it uses less digits than its factorization.

263792968320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276543 (or 276531 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 263792968320 in words is "two hundred sixty-three billion, seven hundred ninety-two million, nine hundred sixty-eight thousand, three hundred twenty".