42101704687 has 6 divisors (see below), whose sum is σ = 48975452448. Its totient is φ = 36087175404.

The previous prime is 42101704669. The next prime is 42101704753. The reversal of 42101704687 is 78640710124.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-42101704687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42101704627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429609183 + ... + 429609280.

It is an arithmetic number, because the mean of its divisors is an integer number (8162575408).

Almost surely, 2^42101704687 is an apocalyptic number.

42101704687 is a deficient number, since it is larger than the sum of its proper divisors (6873747761).

42101704687 is an equidigital number, since it uses as much as digits as its factorization.

42101704687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859218477 (or 859218470 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 42101704687 in words is "forty-two billion, one hundred one million, seven hundred four thousand, six hundred eighty-seven".