42054536177 has 2 divisors, whose sum is σ = 42054536178. Its totient is φ = 42054536176.

The previous prime is 42054536137. The next prime is 42054536257. The reversal of 42054536177 is 77163545024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24654024256 + 17400511921 = 157016^2 + 131911^2 .

It is a cyclic number.

It is not a de Polignac number, because 42054536177 - 2¹² = 42054532081 is a prime.

It is not a weakly prime, because it can be changed into another prime (42054536137) 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, 21027268088 + 21027268089.

It is an arithmetic number, because the mean of its divisors is an integer number (21027268089).

Almost surely, 2^42054536177 is an apocalyptic number.

It is an amenable number.

42054536177 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054536177 is an equidigital number, since it uses as much as digits as its factorization.

42054536177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 42054536177 in words is "forty-two billion, fifty-four million, five hundred thirty-six thousand, one hundred seventy-seven".