68899583878 has 8 divisors (see below), whose sum is σ = 103573562400. Its totient is φ = 34375063080.

The previous prime is 68899583873. The next prime is 68899583881. The reversal of 68899583878 is 87838599886.

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

It is a junction number, because it is equal to n+sod(n) for n = 68899583798 and 68899583807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68899583873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37363278 + ... + 37365121.

It is an arithmetic number, because the mean of its divisors is an integer number (12946695300).

Almost surely, 2^68899583878 is an apocalyptic number.

68899583878 is a deficient number, since it is larger than the sum of its proper divisors (34673978522).

68899583878 is a wasteful number, since it uses less digits than its factorization.

68899583878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74728862.

The product of its digits is 1672151040, while the sum is 79.

The spelling of 68899583878 in words is "sixty-eight billion, eight hundred ninety-nine million, five hundred eighty-three thousand, eight hundred seventy-eight".