75494655808 has 112 divisors (see below), whose sum is σ = 177169023360. Its totient is φ = 31465728000.

The previous prime is 75494655799. The next prime is 75494655827. The reversal of 75494655808 is 80855649457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1354638 + ... + 1409266.

It is an arithmetic number, because the mean of its divisors is an integer number (1581866280).

Almost surely, 2^75494655808 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 75494655808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88584511680).

75494655808 is an abundant number, since it is smaller than the sum of its proper divisors (101674367552).

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

75494655808 is a wasteful number, since it uses less digits than its factorization.

75494655808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54816 (or 54806 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 75494655808 in words is "seventy-five billion, four hundred ninety-four million, six hundred fifty-five thousand, eight hundred eight".