67961130686 has 4 divisors (see below), whose sum is σ = 101941696032. Its totient is φ = 33980565342.

The previous prime is 67961130623. The next prime is 67961130691. The reversal of 67961130686 is 68603116976.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16990282670 + ... + 16990282673.

It is an arithmetic number, because the mean of its divisors is an integer number (25485424008).

Almost surely, 2^67961130686 is an apocalyptic number.

67961130686 is a deficient number, since it is larger than the sum of its proper divisors (33980565346).

67961130686 is a wasteful number, since it uses less digits than its factorization.

67961130686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33980565345.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 67961130686 in words is "sixty-seven billion, nine hundred sixty-one million, one hundred thirty thousand, six hundred eighty-six".