42634706685 has 8 divisors (see below), whose sum is σ = 68215530720. Its totient is φ = 22738510224.

The previous prime is 42634706659. The next prime is 42634706687. The reversal of 42634706685 is 58660743624.

It is a happy number.

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

It is not a de Polignac number, because 42634706685 - 2⁷ = 42634706557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42634706687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421156875 + ... + 1421156904.

It is an arithmetic number, because the mean of its divisors is an integer number (8526941340).

Almost surely, 2^42634706685 is an apocalyptic number.

It is an amenable number.

42634706685 is a deficient number, since it is larger than the sum of its proper divisors (25580824035).

42634706685 is a wasteful number, since it uses less digits than its factorization.

42634706685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842313787.

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 42634706685 in words is "forty-two billion, six hundred thirty-four million, seven hundred six thousand, six hundred eighty-five".