42449300394425 has 6 divisors (see below), whose sum is σ = 52637132489118. Its totient is φ = 33959440315520.

The previous prime is 42449300394409. The next prime is 42449300394497. The reversal of 42449300394425 is 52449300394424.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1980707205376 + 40468593189049 = 1407376^2 + 6361493^2 .

It is not a de Polignac number, because 42449300394425 - 2⁴ = 42449300394409 is a prime.

It is a super-2 number, since 2×42449300394425² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848986007864 + ... + 848986007913.

It is an arithmetic number, because the mean of its divisors is an integer number (8772855414853).

Almost surely, 2^{42449300394425} is an apocalyptic number.

It is an amenable number.

42449300394425 is a deficient number, since it is larger than the sum of its proper divisors (10187832094693).

42449300394425 is a wasteful number, since it uses less digits than its factorization.

42449300394425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697972015787 (or 1697972015782 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 53.

Subtracting 42449300394425 from its reverse (52449300394424), we obtain a palindrome (9999999999999).

The spelling of 42449300394425 in words is "forty-two trillion, four hundred forty-nine billion, three hundred million, three hundred ninety-four thousand, four hundred twenty-five".