43198751473 has 2 divisors, whose sum is σ = 43198751474. Its totient is φ = 43198751472.

The previous prime is 43198751471. The next prime is 43198751483. The reversal of 43198751473 is 37415789134.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40041210609 + 3157540864 = 200103^2 + 56192^2 .

It is a cyclic number.

It is not a de Polignac number, because 43198751473 - 2¹ = 43198751471 is a prime.

It is a super-2 number, since 2×43198751473² (a number of 22 digits) contains 22 as substring.

Together with 43198751471, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43198751473.

It is not a weakly prime, because it can be changed into another prime (43198751471) 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 as a sum of consecutive naturals, namely, 21599375736 + 21599375737.

It is an arithmetic number, because the mean of its divisors is an integer number (21599375737).

Almost surely, 2^43198751473 is an apocalyptic number.

It is an amenable number.

43198751473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43198751473 is an equidigital number, since it uses as much as digits as its factorization.

43198751473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The spelling of 43198751473 in words is "forty-three billion, one hundred ninety-eight million, seven hundred fifty-one thousand, four hundred seventy-three".