42738893453 has 4 divisors (see below), whose sum is σ = 43179500700. Its totient is φ = 42298286208.

The previous prime is 42738893447. The next prime is 42738893459. The reversal of 42738893453 is 35439883724.

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

It is an interprime number because it is at equal distance from previous prime (42738893447) and next prime (42738893459).

It can be written as a sum of positive squares in 2 ways, for example, as 22336199209 + 20402694244 = 149453^2 + 142838^2 .

It is a cyclic number.

It is not a de Polignac number, because 42738893453 - 2²² = 42734699149 is a prime.

It is a super-2 number, since 2×42738893453² (a number of 22 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 (42738893459) 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, 220303478 + ... + 220303671.

It is an arithmetic number, because the mean of its divisors is an integer number (10794875175).

Almost surely, 2^42738893453 is an apocalyptic number.

It is an amenable number.

42738893453 is a deficient number, since it is larger than the sum of its proper divisors (440607247).

42738893453 is an equidigital number, since it uses as much as digits as its factorization.

42738893453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440607246.

The product of its digits is 17418240, while the sum is 56.

The spelling of 42738893453 in words is "forty-two billion, seven hundred thirty-eight million, eight hundred ninety-three thousand, four hundred fifty-three".