248195268865 has 8 divisors (see below), whose sum is σ = 297839626920. Its totient is φ = 198552678912.

The previous prime is 248195268859. The next prime is 248195268887. The reversal of 248195268865 is 568862591842.

It is a Cunningham number, because it is equal to 498192²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 89350775056 + 158844493809 = 298916^2 + 398553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248195268865 - 2⁵ = 248195268833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248195268797 and 248195268806.

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, 110610 + ... + 713179.

It is an arithmetic number, because the mean of its divisors is an integer number (37229953365).

Almost surely, 2^248195268865 is an apocalyptic number.

It is an amenable number.

248195268865 is a deficient number, since it is larger than the sum of its proper divisors (49644358055).

248195268865 is an equidigital number, since it uses as much as digits as its factorization.

248195268865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884051.

The product of its digits is 66355200, while the sum is 64.

The spelling of 248195268865 in words is "two hundred forty-eight billion, one hundred ninety-five million, two hundred sixty-eight thousand, eight hundred sixty-five".