42068016253 has 4 divisors (see below), whose sum is σ = 42068501820. Its totient is φ = 42067530688.

The previous prime is 42068016251. The next prime is 42068016293. The reversal of 42068016253 is 35261086024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21229072804 + 20838943449 = 145702^2 + 144357^2 .

It is a cyclic number.

It is not a de Polignac number, because 42068016253 - 2¹ = 42068016251 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 (42068016251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73468 + ... + 299221.

It is an arithmetic number, because the mean of its divisors is an integer number (10517125455).

Almost surely, 2^42068016253 is an apocalyptic number.

It is an amenable number.

42068016253 is a deficient number, since it is larger than the sum of its proper divisors (485567).

42068016253 is a wasteful number, since it uses less digits than its factorization.

42068016253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485566.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 42068016253 in words is "forty-two billion, sixty-eight million, sixteen thousand, two hundred fifty-three".