42092785481 has 2 divisors, whose sum is σ = 42092785482. Its totient is φ = 42092785480.

The previous prime is 42092785457. The next prime is 42092785529. The reversal of 42092785481 is 18458729024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41828430400 + 264355081 = 204520^2 + 16259^2 .

It is a cyclic number.

It is not a de Polignac number, because 42092785481 - 2¹⁰ = 42092784457 is a prime.

It is a super-2 number, since 2×42092785481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42092785681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21046392740 + 21046392741.

It is an arithmetic number, because the mean of its divisors is an integer number (21046392741).

Almost surely, 2^42092785481 is an apocalyptic number.

It is an amenable number.

42092785481 is a deficient number, since it is larger than the sum of its proper divisors (1).

42092785481 is an equidigital number, since it uses as much as digits as its factorization.

42092785481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 42092785481 in words is "forty-two billion, ninety-two million, seven hundred eighty-five thousand, four hundred eighty-one".