263901275240 has 16 divisors (see below), whose sum is σ = 593777869380. Its totient is φ = 105560510080.

The previous prime is 263901275233. The next prime is 263901275269. The reversal of 263901275240 is 42572109362.

263901275240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 249774051076 + 14127224164 = 499774^2 + 118858^2 .

It is a super-3 number, since 3×263901275240³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3298765901 + ... + 3298765980.

Almost surely, 2^263901275240 is an apocalyptic number.

263901275240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263901275240 is an abundant number, since it is smaller than the sum of its proper divisors (329876594140).

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

263901275240 is a wasteful number, since it uses less digits than its factorization.

263901275240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597531892 (or 6597531888 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 263901275240 in words is "two hundred sixty-three billion, nine hundred one million, two hundred seventy-five thousand, two hundred forty".