68636040067 has 8 divisors (see below), whose sum is σ = 79770700800. Its totient is φ = 57833757384.

The previous prime is 68636040013. The next prime is 68636040089. The reversal of 68636040067 is 76004063686.

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

It is not a de Polignac number, because 68636040067 - 2¹⁵ = 68636007299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68636039999 and 68636040026.

It is not an unprimeable number, because it can be changed into a prime (68636040167) 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, 83094067 + ... + 83094892.

It is an arithmetic number, because the mean of its divisors is an integer number (9971337600).

Almost surely, 2^68636040067 is an apocalyptic number.

68636040067 is a deficient number, since it is larger than the sum of its proper divisors (11134660733).

68636040067 is a wasteful number, since it uses less digits than its factorization.

68636040067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166189025.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 68636040067 in words is "sixty-eight billion, six hundred thirty-six million, forty thousand, sixty-seven".