248485143688 has 8 divisors (see below), whose sum is σ = 465909644430. Its totient is φ = 124242571840.

The previous prime is 248485143659. The next prime is 248485143689. The reversal of 248485143688 is 886341584842.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 180164593764 + 68320549924 = 424458^2 + 261382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (248485143689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15530321473 + ... + 15530321488.

Almost surely, 2^248485143688 is an apocalyptic number.

It is an amenable number.

248485143688 is a deficient number, since it is larger than the sum of its proper divisors (217424500742).

248485143688 is a wasteful number, since it uses less digits than its factorization.

248485143688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31060642967 (or 31060642963 counting only the distinct ones).

The product of its digits is 47185920, while the sum is 61.

The spelling of 248485143688 in words is "two hundred forty-eight billion, four hundred eighty-five million, one hundred forty-three thousand, six hundred eighty-eight".