42551742593 has 2 divisors, whose sum is σ = 42551742594. Its totient is φ = 42551742592.

The previous prime is 42551742529. The next prime is 42551742599. The reversal of 42551742593 is 39524715524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25354829824 + 17196912769 = 159232^2 + 131137^2 .

It is a cyclic number.

It is not a de Polignac number, because 42551742593 - 2⁶ = 42551742529 is a prime.

It is not a weakly prime, because it can be changed into another prime (42551742599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21275871296 + 21275871297.

It is an arithmetic number, because the mean of its divisors is an integer number (21275871297).

Almost surely, 2^42551742593 is an apocalyptic number.

It is an amenable number.

42551742593 is a deficient number, since it is larger than the sum of its proper divisors (1).

42551742593 is an equidigital number, since it uses as much as digits as its factorization.

42551742593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 47.

The spelling of 42551742593 in words is "forty-two billion, five hundred fifty-one million, seven hundred forty-two thousand, five hundred ninety-three".