75177720234 has 12 divisors (see below), whose sum is σ = 162885060546. Its totient is φ = 25059240072.

The previous prime is 75177720217. The next prime is 75177720287. The reversal of 75177720234 is 43202777157.

It can be written as a sum of positive squares in only one way, i.e., 74717489025 + 460231209 = 273345^2 + 21453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75177720234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2088269989 + ... + 2088270024.

Almost surely, 2^75177720234 is an apocalyptic number.

75177720234 is an abundant number, since it is smaller than the sum of its proper divisors (87707340312).

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

75177720234 is a wasteful number, since it uses less digits than its factorization.

75177720234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176540021 (or 4176540018 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 75177720234 in words is "seventy-five billion, one hundred seventy-seven million, seven hundred twenty thousand, two hundred thirty-four".