68905862915 has 8 divisors (see below), whose sum is σ = 82693356000. Its totient is φ = 55120476672.

The previous prime is 68905862899. The next prime is 68905862917. The reversal of 68905862915 is 51926850986.

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 68905862915 - 2⁴ = 68905862899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68905862917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453839 + ... + 586328.

It is an arithmetic number, because the mean of its divisors is an integer number (10336669500).

Almost surely, 2^68905862915 is an apocalyptic number.

68905862915 is a deficient number, since it is larger than the sum of its proper divisors (13787493085).

68905862915 is a wasteful number, since it uses less digits than its factorization.

68905862915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053421.

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 68905862915 in words is "sixty-eight billion, nine hundred five million, eight hundred sixty-two thousand, nine hundred fifteen".