42723441853 has 2 divisors, whose sum is σ = 42723441854. Its totient is φ = 42723441852.

The previous prime is 42723441823. The next prime is 42723441907. The reversal of 42723441853 is 35814432724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27303266169 + 15420175684 = 165237^2 + 124178^2 .

It is a cyclic number.

It is not a de Polignac number, because 42723441853 - 2²⁵ = 42689887421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42723441823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21361720926 + 21361720927.

It is an arithmetic number, because the mean of its divisors is an integer number (21361720927).

Almost surely, 2^42723441853 is an apocalyptic number.

It is an amenable number.

42723441853 is a deficient number, since it is larger than the sum of its proper divisors (1).

42723441853 is an equidigital number, since it uses as much as digits as its factorization.

42723441853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 43.

The spelling of 42723441853 in words is "forty-two billion, seven hundred twenty-three million, four hundred forty-one thousand, eight hundred fifty-three".