42404214340253 has 4 divisors (see below), whose sum is σ = 42404234241468. Its totient is φ = 42404194439040.

The previous prime is 42404214340247. The next prime is 42404214340339. The reversal of 42404214340253 is 35204341240424.

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 17859304204729 + 24544910135524 = 4226027^2 + 4954282^2 .

It is a cyclic number.

It is not a de Polignac number, because 42404214340253 - 2¹⁶ = 42404214274717 is a prime.

It is a super-2 number, since 2×42404214340253² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404214340153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6310676 + ... + 11163917.

It is an arithmetic number, because the mean of its divisors is an integer number (10601058560367).

Almost surely, 2^{42404214340253} is an apocalyptic number.

It is an amenable number.

42404214340253 is a deficient number, since it is larger than the sum of its proper divisors (19901215).

42404214340253 is a wasteful number, since it uses less digits than its factorization.

42404214340253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19901214.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 42404214340253 its reverse (35204341240424), we get a palindrome (77608555580677).

The spelling of 42404214340253 in words is "forty-two trillion, four hundred four billion, two hundred fourteen million, three hundred forty thousand, two hundred fifty-three".