75000068820 has 36 divisors (see below), whose sum is σ = 227500209300. Its totient is φ = 20000018304.

The previous prime is 75000068807. The next prime is 75000068863. The reversal of 75000068820 is 2886000057.

It can be written as a sum of positive squares in 2 ways, for example, as 20137312836 + 54862755984 = 141906^2 + 234228^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 208333345 + ... + 208333704.

Almost surely, 2^75000068820 is an apocalyptic number.

It is an amenable number.

75000068820 is an abundant number, since it is smaller than the sum of its proper divisors (152500140480).

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

75000068820 is a wasteful number, since it uses less digits than its factorization.

75000068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416667064 (or 416667059 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

Adding to 75000068820 its reverse (2886000057), we get a palindrome (77886068877).

The spelling of 75000068820 in words is "seventy-five billion, sixty-eight thousand, eight hundred twenty".