68855918498 has 8 divisors (see below), whose sum is σ = 103359436992. Its totient is φ = 34402772836.

The previous prime is 68855918423. The next prime is 68855918503. The reversal of 68855918498 is 89481955886.

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

It is a super-2 number, since 2×68855918498² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12589790 + ... + 12595257.

It is an arithmetic number, because the mean of its divisors is an integer number (12919929624).

Almost surely, 2^68855918498 is an apocalyptic number.

68855918498 is a deficient number, since it is larger than the sum of its proper divisors (34503518494).

68855918498 is a wasteful number, since it uses less digits than its factorization.

68855918498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25186416.

The product of its digits is 199065600, while the sum is 71.

The spelling of 68855918498 in words is "sixty-eight billion, eight hundred fifty-five million, nine hundred eighteen thousand, four hundred ninety-eight".