42404203052653 has 4 divisors (see below), whose sum is σ = 45666064825948. Its totient is φ = 39142341279360.

The previous prime is 42404203052639. The next prime is 42404203052657. The reversal of 42404203052653 is 35625030240424.

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 7638297480009 + 34765905572644 = 2763747^2 + 5896262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42404203052653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404203052657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630930886628 + ... + 1630930886653.

It is an arithmetic number, because the mean of its divisors is an integer number (11416516206487).

Almost surely, 2^{42404203052653} is an apocalyptic number.

It is an amenable number.

42404203052653 is a deficient number, since it is larger than the sum of its proper divisors (3261861773295).

42404203052653 is a wasteful number, since it uses less digits than its factorization.

42404203052653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261861773294.

The product of its (nonzero) digits is 691200, while the sum is 40.

The spelling of 42404203052653 in words is "forty-two trillion, four hundred four billion, two hundred three million, fifty-two thousand, six hundred fifty-three".