263247012012540 has 24 divisors (see below), whose sum is σ = 737091633635280. Its totient is φ = 70199203203328.

The previous prime is 263247012012533. The next prime is 263247012012557. The reversal of 263247012012540 is 45210210742362.

It is a super-2 number, since 2×263247012012540² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193725100045 + ... + 2193725100164.

It is an arithmetic number, because the mean of its divisors is an integer number (30712151401470).

Almost surely, 2^{263247012012540} is an apocalyptic number.

263247012012540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263247012012540 is an abundant number, since it is smaller than the sum of its proper divisors (473844621622740).

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

263247012012540 is a wasteful number, since it uses less digits than its factorization.

263247012012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387450200221 (or 4387450200219 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 263247012012540 in words is "two hundred sixty-three trillion, two hundred forty-seven billion, twelve million, twelve thousand, five hundred forty".