75230355640 has 32 divisors (see below), whose sum is σ = 184656328560. Its totient is φ = 27356492800.

The previous prime is 75230355611. The next prime is 75230355647. The reversal of 75230355640 is 4655303257.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 75230355593 and 75230355602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75230355647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85488601 + ... + 85489480.

Almost surely, 2^75230355640 is an apocalyptic number.

It is an amenable number.

75230355640 is an abundant number, since it is smaller than the sum of its proper divisors (109425972920).

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

75230355640 is a wasteful number, since it uses less digits than its factorization.

75230355640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170978103 (or 170978099 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 40.

Adding to 75230355640 its reverse (4655303257), we get a palindrome (79885658897).

The spelling of 75230355640 in words is "seventy-five billion, two hundred thirty million, three hundred fifty-five thousand, six hundred forty".