5123138748 has 72 divisors (see below), whose sum is σ = 14975350992. Its totient is φ = 1351155456.

The previous prime is 5123138731. The next prime is 5123138767. The reversal of 5123138748 is 8478313215.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327465 + ... + 342752.

It is an arithmetic number, because the mean of its divisors is an integer number (207990986).

Almost surely, 2^5123138748 is an apocalyptic number.

It is an amenable number.

5123138748 is an abundant number, since it is smaller than the sum of its proper divisors (9852212244).

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

5123138748 is a wasteful number, since it uses less digits than its factorization.

5123138748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670251 (or 670242 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 5123138748 is about 71576.1045880537. The cubic root of 5123138748 is about 1723.8998794325.

The spelling of 5123138748 in words is "five billion, one hundred twenty-three million, one hundred thirty-eight thousand, seven hundred forty-eight".