68042571 has 8 divisors (see below), whose sum is σ = 91069440. Its totient is φ = 45188712.

The previous prime is 68042567. The next prime is 68042573. The reversal of 68042571 is 17524086.

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

It is not a de Polignac number, because 68042571 - 2² = 68042567 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68042573) 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, 42331 + ... + 43908.

It is an arithmetic number, because the mean of its divisors is an integer number (11383680).

Almost surely, 2^68042571 is an apocalyptic number.

68042571 is a deficient number, since it is larger than the sum of its proper divisors (23026869).

68042571 is a wasteful number, since it uses less digits than its factorization.

68042571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86505.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 68042571 is about 8248.7920933916. The cubic root of 68042571 is about 408.2506689621.

The spelling of 68042571 in words is "sixty-eight million, forty-two thousand, five hundred seventy-one".