248447551969 has 4 divisors (see below), whose sum is σ = 253733670144. Its totient is φ = 243161433796.

The previous prime is 248447551931. The next prime is 248447551981. The reversal of 248447551969 is 969155744842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248447551969 - 2¹¹ = 248447549921 is a prime.

It is a super-2 number, since 2×248447551969² (a number of 24 digits) contains 22 as substring.

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 248447551969.

It is not an unprimeable number, because it can be changed into a prime (248447555969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643059017 + ... + 2643059110.

It is an arithmetic number, because the mean of its divisors is an integer number (63433417536).

Almost surely, 2^248447551969 is an apocalyptic number.

It is an amenable number.

248447551969 is a deficient number, since it is larger than the sum of its proper divisors (5286118175).

248447551969 is an equidigital number, since it uses as much as digits as its factorization.

248447551969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286118174.

The product of its digits is 87091200, while the sum is 64.

The spelling of 248447551969 in words is "two hundred forty-eight billion, four hundred forty-seven million, five hundred fifty-one thousand, nine hundred sixty-nine".