42450453423 has 12 divisors (see below), whose sum is σ = 70076939088. Its totient is φ = 24257401920.

The previous prime is 42450453379. The next prime is 42450453427. The reversal of 42450453423 is 32435405424.

It is not a de Polignac number, because 42450453423 - 2⁹ = 42450452911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42450453427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336908298 + ... + 336908423.

It is an arithmetic number, because the mean of its divisors is an integer number (5839744924).

Almost surely, 2^42450453423 is an apocalyptic number.

42450453423 is a deficient number, since it is larger than the sum of its proper divisors (27626485665).

42450453423 is a wasteful number, since it uses less digits than its factorization.

42450453423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673816734 (or 673816731 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 42450453423 its reverse (32435405424), we get a palindrome (74885858847).

The spelling of 42450453423 in words is "forty-two billion, four hundred fifty million, four hundred fifty-three thousand, four hundred twenty-three".