42054452477 has 2 divisors, whose sum is σ = 42054452478. Its totient is φ = 42054452476.

The previous prime is 42054452383. The next prime is 42054452497. The reversal of 42054452477 is 77425445024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26054479396 + 15999973081 = 161414^2 + 126491^2 .

It is a cyclic number.

It is not a de Polignac number, because 42054452477 - 2¹⁴ = 42054436093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42054452497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21027226238 + 21027226239.

It is an arithmetic number, because the mean of its divisors is an integer number (21027226239).

Almost surely, 2^42054452477 is an apocalyptic number.

It is an amenable number.

42054452477 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054452477 is an equidigital number, since it uses as much as digits as its factorization.

42054452477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1254400, while the sum is 44.

The spelling of 42054452477 in words is "forty-two billion, fifty-four million, four hundred fifty-two thousand, four hundred seventy-seven".