42408431953 has 4 divisors (see below), whose sum is σ = 42528569508. Its totient is φ = 42288294400.

The previous prime is 42408431951. The next prime is 42408431977. The reversal of 42408431953 is 35913480424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14044146064 + 28364285889 = 118508^2 + 168417^2 .

It is a cyclic number.

It is not a de Polignac number, because 42408431953 - 2¹ = 42408431951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42408431951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60068248 + ... + 60068953.

It is an arithmetic number, because the mean of its divisors is an integer number (10632142377).

Almost surely, 2^42408431953 is an apocalyptic number.

It is an amenable number.

42408431953 is a deficient number, since it is larger than the sum of its proper divisors (120137555).

42408431953 is a wasteful number, since it uses less digits than its factorization.

42408431953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120137554.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 42408431953 in words is "forty-two billion, four hundred eight million, four hundred thirty-one thousand, nine hundred fifty-three".