42010449249 has 32 divisors (see below), whose sum is σ = 61396272000. Its totient is φ = 25433017344.

The previous prime is 42010449241. The next prime is 42010449251. The reversal of 42010449249 is 94294401024.

It is not a de Polignac number, because 42010449249 - 2³ = 42010449241 is a prime.

It is a super-2 number, since 2×42010449249² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42010449241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2326347 + ... + 2344335.

It is an arithmetic number, because the mean of its divisors is an integer number (1918633500).

Almost surely, 2^42010449249 is an apocalyptic number.

It is an amenable number.

42010449249 is a deficient number, since it is larger than the sum of its proper divisors (19385822751).

42010449249 is a wasteful number, since it uses less digits than its factorization.

42010449249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19617.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 42010449249 in words is "forty-two billion, ten million, four hundred forty-nine thousand, two hundred forty-nine".