68985188351 has 8 divisors (see below), whose sum is σ = 69340134864. Its totient is φ = 68631131520.

The previous prime is 68985188323. The next prime is 68985188381. The reversal of 68985188351 is 15388158986.

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 68985188351 - 2⁶ = 68985188287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68985188381) 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, 66665 + ... + 377378.

It is an arithmetic number, because the mean of its divisors is an integer number (8667516858).

Almost surely, 2^68985188351 is an apocalyptic number.

68985188351 is a deficient number, since it is larger than the sum of its proper divisors (354946513).

68985188351 is a wasteful number, since it uses less digits than its factorization.

68985188351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444841.

The product of its digits is 16588800, while the sum is 62.

The spelling of 68985188351 in words is "sixty-eight billion, nine hundred eighty-five million, one hundred eighty-eight thousand, three hundred fifty-one".