42147663137 has 2 divisors, whose sum is σ = 42147663138. Its totient is φ = 42147663136.

The previous prime is 42147663119. The next prime is 42147663149. The reversal of 42147663137 is 73136674124.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34304966656 + 7842696481 = 185216^2 + 88559^2 .

It is a cyclic number.

It is not a de Polignac number, because 42147663137 - 2¹⁰ = 42147662113 is a prime.

It is not a weakly prime, because it can be changed into another prime (42147663037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21073831568 + 21073831569.

It is an arithmetic number, because the mean of its divisors is an integer number (21073831569).

Almost surely, 2^42147663137 is an apocalyptic number.

It is an amenable number.

42147663137 is a deficient number, since it is larger than the sum of its proper divisors (1).

42147663137 is an equidigital number, since it uses as much as digits as its factorization.

42147663137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 44.

The spelling of 42147663137 in words is "forty-two billion, one hundred forty-seven million, six hundred sixty-three thousand, one hundred thirty-seven".