248431824138 has 16 divisors (see below), whose sum is σ = 526090921920. Its totient is φ = 77939395776.

The previous prime is 248431824119. The next prime is 248431824139. The reversal of 248431824138 is 831428134842.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248431824139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217802958 + ... + 1217803161.

It is an arithmetic number, because the mean of its divisors is an integer number (32880682620).

Almost surely, 2^248431824138 is an apocalyptic number.

248431824138 is an abundant number, since it is smaller than the sum of its proper divisors (277659097782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248431824138 is a wasteful number, since it uses less digits than its factorization.

248431824138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435606141.

The product of its digits is 1179648, while the sum is 48.

The spelling of 248431824138 in words is "two hundred forty-eight billion, four hundred thirty-one million, eight hundred twenty-four thousand, one hundred thirty-eight".