67710071699 has 4 divisors (see below), whose sum is σ = 67720410936. Its totient is φ = 67699732464.

The previous prime is 67710071641. The next prime is 67710071713. The reversal of 67710071699 is 99617001776.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67710071699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67710071699.

It is not an unprimeable number, because it can be changed into a prime (67710071609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5159789 + ... + 5172894.

It is an arithmetic number, because the mean of its divisors is an integer number (16930102734).

Almost surely, 2^67710071699 is an apocalyptic number.

67710071699 is a deficient number, since it is larger than the sum of its proper divisors (10339237).

67710071699 is a wasteful number, since it uses less digits than its factorization.

67710071699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10339236.

The product of its (nonzero) digits is 1000188, while the sum is 53.

The spelling of 67710071699 in words is "sixty-seven billion, seven hundred ten million, seventy-one thousand, six hundred ninety-nine".