748648511 has 4 divisors (see below), whose sum is σ = 806236872. Its totient is φ = 691060152.

The previous prime is 748648501. The next prime is 748648513. The reversal of 748648511 is 115846847.

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

It is a cyclic number.

It is not a de Polignac number, because 748648511 - 2¹⁴ = 748632127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748648513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28794161 + ... + 28794186.

It is an arithmetic number, because the mean of its divisors is an integer number (201559218).

Almost surely, 2^748648511 is an apocalyptic number.

748648511 is a deficient number, since it is larger than the sum of its proper divisors (57588361).

748648511 is a wasteful number, since it uses less digits than its factorization.

748648511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57588360.

The product of its digits is 215040, while the sum is 44.

The square root of 748648511 is about 27361.4420489856. The cubic root of 748648511 is about 908.0142308410.

The spelling of 748648511 in words is "seven hundred forty-eight million, six hundred forty-eight thousand, five hundred eleven".