42000706449 has 24 divisors (see below), whose sum is σ = 65483337920. Its totient is φ = 25787680992.

The previous prime is 42000706417. The next prime is 42000706483. The reversal of 42000706449 is 94460700024.

42000706449 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 0 + 7 + 0 + 644 + 9 = 666.

It is not a de Polignac number, because 42000706449 - 2⁵ = 42000706417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42000705449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357499 + ... + 460224.

Almost surely, 2^42000706449 is an apocalyptic number.

It is an amenable number.

42000706449 is a deficient number, since it is larger than the sum of its proper divisors (23482631471).

42000706449 is a wasteful number, since it uses less digits than its factorization.

42000706449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818181 (or 818178 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 42000706449 in words is "forty-two billion, seven hundred six thousand, four hundred forty-nine".