75681851136 has 36 divisors (see below), whose sum is σ = 201424095432. Its totient is φ = 25227283456.

The previous prime is 75681851131. The next prime is 75681851143. The reversal of 75681851136 is 63115818657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75681851131) 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 3 ways as a sum of consecutive naturals, for example, 49271271 + ... + 49272806.

It is an arithmetic number, because the mean of its divisors is an integer number (5595113762).

Almost surely, 2^75681851136 is an apocalyptic number.

It is an amenable number.

75681851136 is an abundant number, since it is smaller than the sum of its proper divisors (125742244296).

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

75681851136 is an equidigital number, since it uses as much as digits as its factorization.

75681851136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98544096 (or 98544082 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The spelling of 75681851136 in words is "seventy-five billion, six hundred eighty-one million, eight hundred fifty-one thousand, one hundred thirty-six".