68779269138065 has 8 divisors (see below), whose sum is σ = 82535229531648. Its totient is φ = 55023344266480.

The previous prime is 68779269138049. The next prime is 68779269138079. The reversal of 68779269138065 is 56083196297786.

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

It is not a de Polignac number, because 68779269138065 - 2⁴ = 68779269138049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4416791 + ... + 12532620.

It is an arithmetic number, because the mean of its divisors is an integer number (10316903691456).

Almost surely, 2^{68779269138065} is an apocalyptic number.

It is an amenable number.

68779269138065 is a deficient number, since it is larger than the sum of its proper divisors (13755960393583).

68779269138065 is a wasteful number, since it uses less digits than its factorization.

68779269138065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760999.

The product of its (nonzero) digits is 1646023680, while the sum is 77.

The spelling of 68779269138065 in words is "sixty-eight trillion, seven hundred seventy-nine billion, two hundred sixty-nine million, one hundred thirty-eight thousand, sixty-five".