75461816458 has 16 divisors (see below), whose sum is σ = 133823911680. Its totient is φ = 31225579056.

The previous prime is 75461816399. The next prime is 75461816459. The reversal of 75461816458 is 85461816457.

It is a junction number, because it is equal to n+sod(n) for n = 75461816399 and 75461816408.

It is not an unprimeable number, because it can be changed into a prime (75461816459) 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, 92932866 + ... + 92933677.

It is an arithmetic number, because the mean of its divisors is an integer number (8363994480).

Almost surely, 2^75461816458 is an apocalyptic number.

75461816458 is a deficient number, since it is larger than the sum of its proper divisors (58362095222).

75461816458 is a wasteful number, since it uses less digits than its factorization.

75461816458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185866581.

The product of its digits is 6451200, while the sum is 55.

Subtracting 75461816458 from its reverse (85461816457), we obtain a palindrome (9999999999).

The spelling of 75461816458 in words is "seventy-five billion, four hundred sixty-one million, eight hundred sixteen thousand, four hundred fifty-eight".