75461816399 has 2 divisors, whose sum is σ = 75461816400. Its totient is φ = 75461816398.

The previous prime is 75461816369. The next prime is 75461816459. The reversal of 75461816399 is 99361816457.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75461816399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75461816359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37730908199 + 37730908200.

It is an arithmetic number, because the mean of its divisors is an integer number (37730908200).

Almost surely, 2^75461816399 is an apocalyptic number.

75461816399 is a deficient number, since it is larger than the sum of its proper divisors (1).

75461816399 is an equidigital number, since it uses as much as digits as its factorization.

75461816399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 59.

The spelling of 75461816399 in words is "seventy-five billion, four hundred sixty-one million, eight hundred sixteen thousand, three hundred ninety-nine".