68761550500667 has 4 divisors (see below), whose sum is σ = 68761694696136. Its totient is φ = 68761406305200.

The previous prime is 68761550500619. The next prime is 68761550500697. The reversal of 68761550500667 is 76600505516786.

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

It is a cyclic number.

It is not a de Polignac number, because 68761550500667 - 2¹⁰ = 68761550499643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68761550500697) 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, 71380058 + ... + 72336959.

It is an arithmetic number, because the mean of its divisors is an integer number (17190423674034).

Almost surely, 2^{68761550500667} is an apocalyptic number.

68761550500667 is a deficient number, since it is larger than the sum of its proper divisors (144195469).

68761550500667 is a wasteful number, since it uses less digits than its factorization.

68761550500667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144195468.

The product of its (nonzero) digits is 63504000, while the sum is 62.

The spelling of 68761550500667 in words is "sixty-eight trillion, seven hundred sixty-one billion, five hundred fifty million, five hundred thousand, six hundred sixty-seven".