745238533968 has 200 divisors, whose sum is σ = 2170118994120. Its totient is φ = 246899266560.

The previous prime is 745238533943. The next prime is 745238533973. The reversal of 745238533968 is 869335832547.

It is a happy number.

745238533968 is a `hidden beast` number, since 7 + 4 + 5 + 2 + 3 + 8 + 533 + 96 + 8 = 666.

745238533968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6312620304 + 738925913664 = 79452^2 + 859608^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 160713346 + ... + 160717982.

Almost surely, 2^745238533968 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 745238533968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085059497060).

745238533968 is an abundant number, since it is smaller than the sum of its proper divisors (1424880460152).

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

745238533968 is a wasteful number, since it uses less digits than its factorization.

745238533968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387 (or 5372 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 63.

The spelling of 745238533968 in words is "seven hundred forty-five billion, two hundred thirty-eight million, five hundred thirty-three thousand, nine hundred sixty-eight".