42360637489 has 3 divisors (see below), whose sum is σ = 42360843307. Its totient is φ = 42360431672.

The previous prime is 42360637469. The next prime is 42360637511. The reversal of 42360637489 is 98473606324.

It is a happy number.

The square root of 42360637489 is 205817.

It is a perfect power (a square), and thus also a powerful number.

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 only one way, i.e., 19682687025 + 22677950464 = 140295^2 + 150592^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42360637489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42360637469) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 102909 + ... + 308725.

Almost surely, 2^42360637489 is an apocalyptic number.

42360637489 is the 205817-th square number.

42360637489 is the 102909-th centered octagonal number.

It is an amenable number.

42360637489 is a deficient number, since it is larger than the sum of its proper divisors (205818).

42360637489 is an frugal number, since it uses more digits than its factorization.

42360637489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411634 (or 205817 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 42360637489 in words is "forty-two billion, three hundred sixty million, six hundred thirty-seven thousand, four hundred eighty-nine".