24868343809 has 9 divisors (see below), whose sum is σ = 25701478401.
Its totient is φ = 24061408260.
The previous prime is 24868343791. The next prime is 24868343833. The reversal of 24868343809 is 90834386842.
The square root of 24868343809 is 157697.
It is a perfect power (a square), and thus also a powerful number.
It is a de Polignac number, because none of the positive numbers 2k-24868343809 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 24868343809.
It is not an unprimeable number, because it can be changed into a prime (24868343839) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4886064 + ... + 4891150.
Almost surely, 224868343809 is an apocalyptic number.
24868343809 is the 157697-th square number.
24868343809 is the 78849-th centered octagonal number.
It is an amenable number.
24868343809 is a deficient number, since it is larger than the sum of its proper divisors (833134592).
24868343809 is an frugal number, since it uses more digits than its factorization.
24868343809 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10236 (or 5118 counting only the distinct ones).
The product of its (nonzero) digits is 7962624, while the sum is 55.
The spelling of 24868343809 in words is "twenty-four billion, eight hundred sixty-eight million, three hundred forty-three thousand, eight hundred nine".