75388719064 has 8 divisors (see below), whose sum is σ = 141353848260. Its totient is φ = 37694359528.

The previous prime is 75388719037. The next prime is 75388719071. The reversal of 75388719064 is 46091788357.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×75388719064² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 4711794934 + ... + 4711794949.

Almost surely, 2^75388719064 is an apocalyptic number.

It is an amenable number.

75388719064 is a deficient number, since it is larger than the sum of its proper divisors (65965129196).

75388719064 is a wasteful number, since it uses less digits than its factorization.

75388719064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9423589889 (or 9423589885 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 75388719064 in words is "seventy-five billion, three hundred eighty-eight million, seven hundred nineteen thousand, sixty-four".