75275624989 has 4 divisors (see below), whose sum is σ = 75276664924. Its totient is φ = 75274585056.

The previous prime is 75275624969. The next prime is 75275625059. The reversal of 75275624989 is 98942657257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98942657257 = 6701 ⋅14765357.

It can be written as a sum of positive squares in 2 ways, for example, as 21121680889 + 54153944100 = 145333^2 + 232710^2 .

It is a cyclic number.

It is not a de Polignac number, because 75275624989 - 2⁹ = 75275624477 is a prime.

It is a super-2 number, since 2×75275624989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75275624989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75275624939) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 402552 + ... + 559105.

It is an arithmetic number, because the mean of its divisors is an integer number (18819166231).

Almost surely, 2^75275624989 is an apocalyptic number.

It is an amenable number.

75275624989 is a deficient number, since it is larger than the sum of its proper divisors (1039935).

75275624989 is an equidigital number, since it uses as much as digits as its factorization.

75275624989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039934.

The product of its digits is 76204800, while the sum is 64.

The spelling of 75275624989 in words is "seventy-five billion, two hundred seventy-five million, six hundred twenty-four thousand, nine hundred eighty-nine".