263040000000 has 448 divisors, whose sum is σ = 883143832896. Its totient is φ = 69632000000.

The previous prime is 263039999977. The next prime is 263040000001. The reversal of 263040000000 is 40362.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263040000001) 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, 1919999932 + ... + 1920000068.

Almost surely, 2^263040000000 is an apocalyptic number.

263040000000 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 263040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441571916448).

263040000000 is an abundant number, since it is smaller than the sum of its proper divisors (620103832896).

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

263040000000 is an frugal number, since it uses more digits than its factorization.

263040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 263040000000 its reverse (40362), we get a palindrome (263040040362).

The spelling of 263040000000 in words is "two hundred sixty-three billion, forty million", and thus it is an aban number.