75145578508 has 192 divisors, whose sum is σ = 182021769216. Its totient is φ = 26198784000.

The previous prime is 75145578503. The next prime is 75145578509. The reversal of 75145578508 is 80587554157.

It is not an unprimeable number, because it can be changed into a prime (75145578503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27414018 + ... + 27416758.

It is an arithmetic number, because the mean of its divisors is an integer number (948030048).

Almost surely, 2^75145578508 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 75145578508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91010884608).

75145578508 is an abundant number, since it is smaller than the sum of its proper divisors (106876190708).

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

75145578508 is a wasteful number, since it uses less digits than its factorization.

75145578508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 55.

The spelling of 75145578508 in words is "seventy-five billion, one hundred forty-five million, five hundred seventy-eight thousand, five hundred eight".