263710579240 has 16 divisors (see below), whose sum is σ = 593348803380. Its totient is φ = 105484231680.

The previous prime is 263710579217. The next prime is 263710579339. The reversal of 263710579240 is 42975017362.

263710579240 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 249222605284 + 14487973956 = 499222^2 + 120366^2 .

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, 3296382201 + ... + 3296382280.

Almost surely, 2^263710579240 is an apocalyptic number.

263710579240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263710579240 is an abundant number, since it is smaller than the sum of its proper divisors (329638224140).

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

263710579240 is a wasteful number, since it uses less digits than its factorization.

263710579240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592764492 (or 6592764488 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 263710579240 in words is "two hundred sixty-three billion, seven hundred ten million, five hundred seventy-nine thousand, two hundred forty".