75475184138 has 32 divisors (see below), whose sum is σ = 121037716800. Its totient is φ = 35172797184.

The previous prime is 75475184137. The next prime is 75475184231. The reversal of 75475184138 is 83148157457.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 75475184138.

It is not an unprimeable number, because it can be changed into a prime (75475184137) 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 15 ways as a sum of consecutive naturals, for example, 8663981 + ... + 8672687.

It is an arithmetic number, because the mean of its divisors is an integer number (3782428650).

Almost surely, 2^75475184138 is an apocalyptic number.

75475184138 is a deficient number, since it is larger than the sum of its proper divisors (45562532662).

75475184138 is a wasteful number, since it uses less digits than its factorization.

75475184138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174.

The product of its digits is 3763200, while the sum is 53.

The spelling of 75475184138 in words is "seventy-five billion, four hundred seventy-five million, one hundred eighty-four thousand, one hundred thirty-eight".