42416457891 has 8 divisors (see below), whose sum is σ = 58505459280. Its totient is φ = 27302547552.

The previous prime is 42416457877. The next prime is 42416457899. The reversal of 42416457891 is 19875461424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42416457891 - 2⁶ = 42416457827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42416457899) 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 in 7 ways as a sum of consecutive naturals, for example, 243772660 + ... + 243772833.

It is an arithmetic number, because the mean of its divisors is an integer number (7313182410).

Almost surely, 2^42416457891 is an apocalyptic number.

42416457891 is a deficient number, since it is larger than the sum of its proper divisors (16089001389).

42416457891 is a wasteful number, since it uses less digits than its factorization.

42416457891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487545525.

The product of its digits is 1935360, while the sum is 51.

The spelling of 42416457891 in words is "forty-two billion, four hundred sixteen million, four hundred fifty-seven thousand, eight hundred ninety-one".