8101708042 has 4 divisors (see below), whose sum is σ = 12152562066. Its totient is φ = 4050854020.

The previous prime is 8101708039. The next prime is 8101708067. The reversal of 8101708042 is 2408071018.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6438618081 + 1663089961 = 80241^2 + 40781^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8101707995 and 8101708013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025427009 + ... + 2025427012.

Almost surely, 2^8101708042 is an apocalyptic number.

8101708042 is a deficient number, since it is larger than the sum of its proper divisors (4050854024).

8101708042 is a wasteful number, since it uses less digits than its factorization.

8101708042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050854023.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 8101708042 is about 90009.4886220336. The cubic root of 8101708042 is about 2008.4400032383.

The spelling of 8101708042 in words is "eight billion, one hundred one million, seven hundred eight thousand, forty-two".