68396611015 has 8 divisors (see below), whose sum is σ = 82567406880. Its totient is φ = 54389639712.

The previous prime is 68396611007. The next prime is 68396611051. The reversal of 68396611015 is 51011669386.

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

It is a cyclic number.

It is not a de Polignac number, because 68396611015 - 2³ = 68396611007 is a prime.

It is a congruent 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, 40955220 + ... + 40956889.

It is an arithmetic number, because the mean of its divisors is an integer number (10320925860).

Almost surely, 2^68396611015 is an apocalyptic number.

68396611015 is a deficient number, since it is larger than the sum of its proper divisors (14170795865).

68396611015 is a wasteful number, since it uses less digits than its factorization.

68396611015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81912281.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 68396611015 in words is "sixty-eight billion, three hundred ninety-six million, six hundred eleven thousand, fifteen".