42370618321 has 8 divisors (see below), whose sum is σ = 45274596840. Its totient is φ = 39512371968.

The previous prime is 42370618243. The next prime is 42370618343. The reversal of 42370618321 is 12381607324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20307675025 + 22062943296 = 142505^2 + 148536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42370618321 - 2¹³ = 42370610129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42370618391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11431126 + ... + 11434831.

It is an arithmetic number, because the mean of its divisors is an integer number (5659324605).

Almost surely, 2^42370618321 is an apocalyptic number.

It is an amenable number.

42370618321 is a deficient number, since it is larger than the sum of its proper divisors (2903978519).

42370618321 is a wasteful number, since it uses less digits than its factorization.

42370618321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866083.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 42370618321 in words is "forty-two billion, three hundred seventy million, six hundred eighteen thousand, three hundred twenty-one".