748781568 has 96 divisors (see below), whose sum is σ = 2163965700. Its totient is φ = 249495552.

The previous prime is 748781563. The next prime is 748781591. The reversal of 748781568 is 865187847.

It is a happy number.

748781568 is a `hidden beast` number, since 7 + 4 + 8 + 78 + 1 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748781563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293643 + ... + 296181.

Almost surely, 2^748781568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 748781568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081982850).

748781568 is an abundant number, since it is smaller than the sum of its proper divisors (1415184132).

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

748781568 is an equidigital number, since it uses as much as digits as its factorization.

748781568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2544 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 748781568 is about 27363.8734100273. The cubic root of 748781568 is about 908.0680213229.

The spelling of 748781568 in words is "seven hundred forty-eight million, seven hundred eighty-one thousand, five hundred sixty-eight".