748128457138 has 8 divisors (see below), whose sum is σ = 1122196428288. Its totient is φ = 374062981044.

The previous prime is 748128457121. The next prime is 748128457163. The reversal of 748128457138 is 831754821847.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629295 + ... + 1375597.

It is an arithmetic number, because the mean of its divisors is an integer number (140274553536).

Almost surely, 2^748128457138 is an apocalyptic number.

748128457138 is a deficient number, since it is larger than the sum of its proper divisors (374067971150).

748128457138 is a wasteful number, since it uses less digits than its factorization.

748128457138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247528.

The product of its digits is 12042240, while the sum is 58.

The spelling of 748128457138 in words is "seven hundred forty-eight billion, one hundred twenty-eight million, four hundred fifty-seven thousand, one hundred thirty-eight".