42217908629 has 16 divisors (see below), whose sum is σ = 48207727680. Its totient is φ = 36649791360.

The previous prime is 42217908617. The next prime is 42217908659. The reversal of 42217908629 is 92680971224.

It is a de Polignac number, because none of the positive numbers 2^k-42217908629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42217908659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589967 + ... + 657644.

It is an arithmetic number, because the mean of its divisors is an integer number (3012982980).

Almost surely, 2^42217908629 is an apocalyptic number.

It is an amenable number.

42217908629 is a deficient number, since it is larger than the sum of its proper divisors (5989819051).

42217908629 is a wasteful number, since it uses less digits than its factorization.

42217908629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247780.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 42217908629 in words is "forty-two billion, two hundred seventeen million, nine hundred eight thousand, six hundred twenty-nine".