42231247537 has 2 divisors, whose sum is σ = 42231247538. Its totient is φ = 42231247536.

The previous prime is 42231247519. The next prime is 42231247549. The reversal of 42231247537 is 73574213224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36467249296 + 5763998241 = 190964^2 + 75921^2 .

It is a cyclic number.

It is not a de Polignac number, because 42231247537 - 2²⁷ = 42097029809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42231247537.

It is not a weakly prime, because it can be changed into another prime (42231247637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21115623768 + 21115623769.

It is an arithmetic number, because the mean of its divisors is an integer number (21115623769).

Almost surely, 2^42231247537 is an apocalyptic number.

It is an amenable number.

42231247537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231247537 is an equidigital number, since it uses as much as digits as its factorization.

42231247537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 40.

The spelling of 42231247537 in words is "forty-two billion, two hundred thirty-one million, two hundred forty-seven thousand, five hundred thirty-seven".