68719898611 has 96 divisors (see below), whose sum is σ = 92671434240. Its totient is φ = 49725591552.

The previous prime is 68719898591. The next prime is 68719898627. The reversal of 68719898611 is 11689891786.

It is a happy number.

It is not a de Polignac number, because 68719898611 - 2⁷ = 68719898483 is a prime.

It is a super-2 number, since 2×68719898611² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68719898011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93751201 + ... + 93751933.

It is an arithmetic number, because the mean of its divisors is an integer number (965327440).

Almost surely, 2^68719898611 is an apocalyptic number.

68719898611 is a deficient number, since it is larger than the sum of its proper divisors (23951535629).

68719898611 is a wasteful number, since it uses less digits than its factorization.

68719898611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 912 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 64.

The spelling of 68719898611 in words is "sixty-eight billion, seven hundred nineteen million, eight hundred ninety-eight thousand, six hundred eleven".