75388918457 has 8 divisors (see below), whose sum is σ = 75822936000. Its totient is φ = 74956147344.

The previous prime is 75388918393. The next prime is 75388918559. The reversal of 75388918457 is 75481988357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75388918457 - 2⁶ = 75388918393 is a prime.

It is a super-2 number, since 2×75388918457² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75388918393 and 75388918402.

It is not an unprimeable number, because it can be changed into a prime (75388915457) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 190157 + ... + 432362.

It is an arithmetic number, because the mean of its divisors is an integer number (9477867000).

Almost surely, 2^75388918457 is an apocalyptic number.

It is an amenable number.

75388918457 is a deficient number, since it is larger than the sum of its proper divisors (434017543).

75388918457 is a wasteful number, since it uses less digits than its factorization.

75388918457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623215.

The product of its digits is 67737600, while the sum is 65.

The spelling of 75388918457 in words is "seventy-five billion, three hundred eighty-eight million, nine hundred eighteen thousand, four hundred fifty-seven".