75998391473 has 2 divisors, whose sum is σ = 75998391474. Its totient is φ = 75998391472.

The previous prime is 75998391467. The next prime is 75998391503. The reversal of 75998391473 is 37419389957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43306858609 + 32691532864 = 208103^2 + 180808^2 .

It is an emirp because it is prime and its reverse (37419389957) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75998391473 is a prime.

It is not a weakly prime, because it can be changed into another prime (75998391463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37999195736 + 37999195737.

It is an arithmetic number, because the mean of its divisors is an integer number (37999195737).

Almost surely, 2^75998391473 is an apocalyptic number.

It is an amenable number.

75998391473 is a deficient number, since it is larger than the sum of its proper divisors (1).

75998391473 is an equidigital number, since it uses as much as digits as its factorization.

75998391473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 65.

The spelling of 75998391473 in words is "seventy-five billion, nine hundred ninety-eight million, three hundred ninety-one thousand, four hundred seventy-three".