42004867149 has 12 divisors (see below), whose sum is σ = 69341368096. Its totient is φ = 24002781192.

The previous prime is 42004867013. The next prime is 42004867181. The reversal of 42004867149 is 94176840024.

42004867149 is a `hidden beast` number, since 4 + 20 + 0 + 486 + 7 + 149 = 666.

It is not a de Polignac number, because 42004867149 - 2⁹ = 42004866637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42004867189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333371899 + ... + 333372024.

Almost surely, 2^42004867149 is an apocalyptic number.

It is an amenable number.

42004867149 is a deficient number, since it is larger than the sum of its proper divisors (27336500947).

42004867149 is a wasteful number, since it uses less digits than its factorization.

42004867149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666743936 (or 666743933 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 42004867149 in words is "forty-two billion, four million, eight hundred sixty-seven thousand, one hundred forty-nine".