263746063040 has 112 divisors (see below), whose sum is σ = 639336775680. Its totient is φ = 103615749120.

The previous prime is 263746063037. The next prime is 263746063051. The reversal of 263746063040 is 40360647362.

263746063040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4801169 + ... + 4855791.

Almost surely, 2^263746063040 is an apocalyptic number.

263746063040 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 263746063040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319668387840).

263746063040 is an abundant number, since it is smaller than the sum of its proper divisors (375590712640).

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

263746063040 is a wasteful number, since it uses less digits than its factorization.

263746063040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54910 (or 54900 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 263746063040 in words is "two hundred sixty-three billion, seven hundred forty-six million, sixty-three thousand, forty".