48643043693 has 2 divisors, whose sum is σ = 48643043694. Its totient is φ = 48643043692.

The previous prime is 48643043651. The next prime is 48643043731. The reversal of 48643043693 is 39634034684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44697570724 + 3945472969 = 211418^2 + 62813^2 .

It is a cyclic number.

It is not a de Polignac number, because 48643043693 - 2¹⁶ = 48642978157 is a prime.

It is a super-2 number, since 2×48643043693² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48643033693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24321521846 + 24321521847.

It is an arithmetic number, because the mean of its divisors is an integer number (24321521847).

Almost surely, 2^48643043693 is an apocalyptic number.

It is an amenable number.

48643043693 is a deficient number, since it is larger than the sum of its proper divisors (1).

48643043693 is an equidigital number, since it uses as much as digits as its factorization.

48643043693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 50.

Subtracting from 48643043693 its reverse (39634034684), we obtain a palindrome (9009009009).

The spelling of 48643043693 in words is "forty-eight billion, six hundred forty-three million, forty-three thousand, six hundred ninety-three".