75533148672 has 80 divisors (see below), whose sum is σ = 203006247840. Its totient is φ = 24954847232.

The previous prime is 75533148671. The next prime is 75533148709. The reversal of 75533148672 is 27684133557.

It is not an unprimeable number, because it can be changed into a prime (75533148671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44022 + ... + 391157.

It is an arithmetic number, because the mean of its divisors is an integer number (2537578098).

Almost surely, 2^75533148672 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 75533148672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101503123920).

75533148672 is an abundant number, since it is smaller than the sum of its proper divisors (127473099168).

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

75533148672 is a wasteful number, since it uses less digits than its factorization.

75533148672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435313 (or 435297 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 51.

The spelling of 75533148672 in words is "seventy-five billion, five hundred thirty-three million, one hundred forty-eight thousand, six hundred seventy-two".