248134909009 has 4 divisors (see below), whose sum is σ = 267222209716. Its totient is φ = 229047608304.

The previous prime is 248134908953. The next prime is 248134909027. The reversal of 248134909009 is 900909431842.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59868302400 + 188266606609 = 244680^2 + 433897^2 .

It is a cyclic number.

It is not a de Polignac number, because 248134909009 - 2⁷ = 248134908881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248134909049) 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, 9543650334 + ... + 9543650359.

It is an arithmetic number, because the mean of its divisors is an integer number (66805552429).

Almost surely, 2^248134909009 is an apocalyptic number.

It is an amenable number.

248134909009 is a deficient number, since it is larger than the sum of its proper divisors (19087300707).

248134909009 is a wasteful number, since it uses less digits than its factorization.

248134909009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19087300706.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 248134909009 in words is "two hundred forty-eight billion, one hundred thirty-four million, nine hundred nine thousand, nine".