75333343538 has 4 divisors (see below), whose sum is σ = 113000015310. Its totient is φ = 37666671768.

The previous prime is 75333343511. The next prime is 75333343571. The reversal of 75333343538 is 83534333357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83534333357 = 262519 ⋅318203.

It can be written as a sum of positive squares in only one way, i.e., 63764835289 + 11568508249 = 252517^2 + 107557^2 .

It is a super-2 number, since 2×75333343538² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75333343492 and 75333343501.

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 as a sum of consecutive naturals, namely, 18833335883 + ... + 18833335886.

Almost surely, 2^75333343538 is an apocalyptic number.

75333343538 is a deficient number, since it is larger than the sum of its proper divisors (37666671772).

75333343538 is a wasteful number, since it uses less digits than its factorization.

75333343538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37666671771.

The product of its digits is 4082400, while the sum is 47.

The spelling of 75333343538 in words is "seventy-five billion, three hundred thirty-three million, three hundred forty-three thousand, five hundred thirty-eight".