42110351681 has 8 divisors (see below), whose sum is σ = 45524705280. Its totient is φ = 38815800048.

The previous prime is 42110351677. The next prime is 42110351707. The reversal of 42110351681 is 18615301124.

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

It is a cyclic number.

It is not a de Polignac number, because 42110351681 - 2² = 42110351677 is a prime.

It is a super-2 number, since 2×42110351681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42110351281) 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, 29949761 + ... + 29951166.

It is an arithmetic number, because the mean of its divisors is an integer number (5690588160).

Almost surely, 2^42110351681 is an apocalyptic number.

It is an amenable number.

42110351681 is a deficient number, since it is larger than the sum of its proper divisors (3414353599).

42110351681 is a wasteful number, since it uses less digits than its factorization.

42110351681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59900983.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 42110351681 in words is "forty-two billion, one hundred ten million, three hundred fifty-one thousand, six hundred eighty-one".