42155335335137 has 2 divisors, whose sum is σ = 42155335335138. Its totient is φ = 42155335335136.

The previous prime is 42155335335131. The next prime is 42155335335259. The reversal of 42155335335137 is 73153353355124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40585003044496 + 1570332290641 = 6370636^2 + 1253129^2 .

It is a cyclic number.

It is not a de Polignac number, because 42155335335137 - 2⁸ = 42155335334881 is a prime.

It is not a weakly prime, because it can be changed into another prime (42155335335131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21077667667568 + 21077667667569.

It is an arithmetic number, because the mean of its divisors is an integer number (21077667667569).

Almost surely, 2^{42155335335137} is an apocalyptic number.

It is an amenable number.

42155335335137 is a deficient number, since it is larger than the sum of its proper divisors (1).

42155335335137 is an equidigital number, since it uses as much as digits as its factorization.

42155335335137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505000, while the sum is 50.

The spelling of 42155335335137 in words is "forty-two trillion, one hundred fifty-five billion, three hundred thirty-five million, three hundred thirty-five thousand, one hundred thirty-seven".