75539901388 has 24 divisors (see below), whose sum is σ = 151092661664. Its totient is φ = 32371488000.

The previous prime is 75539901361. The next prime is 75539901389. The reversal of 75539901388 is 88310993557.

It is not an unprimeable number, because it can be changed into a prime (75539901389) 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 7 ways as a sum of consecutive naturals, for example, 239188 + ... + 456388.

Almost surely, 2^75539901388 is an apocalyptic number.

It is an amenable number.

75539901388 is an abundant number, since it is smaller than the sum of its proper divisors (75552760276).

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

75539901388 is a wasteful number, since it uses less digits than its factorization.

75539901388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229633 (or 229631 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 75539901388 in words is "seventy-five billion, five hundred thirty-nine million, nine hundred one thousand, three hundred eighty-eight".